What motivates Pacific salmon to migrate? And give two obstacles they face during migration.

Answers

Answer 1
The pacific salmon is motivated by the massive feeding and potential growth by nutrients in the sea. One obstacle that they would face is the time of the journey and the predators along the way.

Related Questions

How does farming creates job for people?

Answers

Farming causes a chain reaction: farmers supply crops/meats to distributors, distributors sell crops/meats in bulk to grocery stores, and those in the food industry can obtain their produce through the mentioned grocers. Restaurants rely on grocers, who rely on distributors, who rely on farmers.

Farmers grows plants/crops and meats for us to eat. They provide us dairy items, such things as milk, cheese, and yogurt. They also sell fur from certain animals such as, cows and goats.

The first fuel Paul’s body uses is ________________________ from Paul’s last meal, which are stored in his _____________ & his ______________ (technically the bits in his BLOOD are used up before that even). The body turns them into ____________, which is burned in ____________. That fuel lasts Paul about ________________.

Answers

1. The first fuel Paul’s body uses is carbohydrate, which is generated from Paul’s last meal.

2. These carbohydrates are stored in his liver and muscles (technically, the bits in his blood are used up before that even).

3. The body turns the carbohydrates into glucose, which is burned in mitochondria during an aerobic cellular respiration.

4. That fuel lasts Paul about 3 miles, 40 minutes ([tex]\frac{2}{3} \;hours[/tex]).

A fuel can be defined as the resources that power the body of a living organism such as a human being. Also, the three (3) main types of fuel that power the human body include the following:

OxygenWaterFood

Fat is a nutritional element of food and it is beneficial to the body of a living organism because after the body exhausts its carbohydrates, it then uses its own fat as a fuel to power the body.

In this context, the first fuel Paul’s body uses is carbohydrate, which is generated from Paul’s last meal. These carbohydrates are stored in his liver and muscles (technically, the bits of carbohydrates in his blood are used up before the storage).

Furthermore, the body turns the carbohydrates into glucose, which is burned in mitochondria during an aerobic cellular respiration. Also, the fuel would only last Paul for a distance of about 3 miles, 40 minutes ([tex]\frac{2}{3} \;hours[/tex]).

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what are the levels of organization from simplest to most complex

Answers

Answer:

The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere

Explanation:

Hope This Helps

Happy Hoildays

~Zero~

Answer:

oops sry we kinda crashed your coms

Explanation:

Complete the sentence. City leaders can protect environmental quality by choosing __________ like shoreline vegetation to protect their coastal communities.

sea walls
extra sand
carbon reduction
natural solutions

Answers

Answer:

natural solutions

Explanation:

Shoreline vegetation is a natural filter that helps the environment.

give an example of a cultured behavior

Answers

Answer: Cultural behavior must involve the use of artifacts. The most famous example in the animal world is the termite stick. Some chimpanzees in Tanzania have learned to fish termites out of their nests using sticks. Everything they see, touch, interact with and think about is cultural.

Explanation:

is this what you mean? if not im so so so sorry and i can try again

To study the mechanism of DNA replication, Meselson and Stahl labeled both strands of a DNA molecule with nitrogen-15 and then tracked the location of this label after one round of replication. which composition describes the products they found?

A. Both double helixes were composed of small segments of the
original strands and small segments of new strands.
B. Both double helixes were composed of large segments of the
original strands and large segments of new strands.
C. Both double helixes were composed of one original strand and
one new strand.
D. One double helix was composed of the two original strands, and
the other was composed of two new strands.

Answers

Answer:

The answer is C.

Explanation:

The original strand is split apart in half, those are added to two new strands. Which makes each double helix part original and part new strand. This is the correct answer, as I just took the test.


Potassium nitrate forms potassium oxide,
nitrogen, and oxygen in certain fireworks.
4KNO3 → 26,0 + 2N2 + 502
This reaction is classified as a
A. combustion reaction.
B. decomposition reaction.
C. single-replacement reaction.
D. synthesis reaction.

Answers

Answer:

A. combustion reaction.

Explanation:

If you light a firework there's more than just a single reaction

Answer:

A. combustion reaction.

Explanation:

Fireworks explode, or combust in the air. Logicly I would classify this as an combustion reaction.

what happened to the urine volume when the solute gradient in the interstitial space was increased?

Answers

The urine volume decreased when the solute gradient in the interstitial

space was increased.

The solute gradient in the interstitial space being increased means more

absorption of compounds into the bloodstream and vice versa. When this

occurs, the constituent of urine decreases.

The decrease in the urine components brings about a decrease in its

volume also due to increased absorption taking place.

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Sheena's B lymphocytes (B cells) produced antibodies to protect her about 3-5 days after she was exposed to a virus. What type of immunity do antibodies provide

Answers

There are two types of immunity: These are acquired immunity and innate immunity.

The type of immunity that these antibodies provide is the acquired immunity.

When an individual's immune system responds to a foreign substance or pathogen, or when a person acquires antibodies from another source, this sort of immunity called the acquired immunity develops. It is a type of immunity developed over time in response to invasion of pathogens.  

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4. Mutations that occur in gametes:
A. May be passed on to future generations
B. Can be important in the evolution of a species
C. Affect the functioning of the gene in which they occur
D. All of these are correct.

Answers

Answer:

Technically C is not entirely correct. But the answer is probably D

Explanation:

Mutations that occur in gametes:

A. May be passed on to future generations

-Correct mutation in gametes(sex cells) can be passed onto future generation.

B. Can be important in the evolution of a species

-Yes, it can lead to different phenotype that may be important to evolution of a species.

C. Affect the functioning of the gene in which they occur

->it can affect the functioning of the gene, but it can be silent mutation or mutation in intron

D. All of these are correct.

Which phase of the cell cycle is longest? What phase of the cell cycle is the shortest?

Answers

Answer:

Interphase is the longest and metaphase is the shortest usually

Explanation:

Answer

The longest phase of the cell cycle is Interphase

The shortest phase of the cell cycle is the Mitotic phase

Explanation

In case of cells with a nucleus, the stages of the cycle are divided into two phases: Interphase and the Mitotic (M) phase.

During Interphase the cell grows and makes a copy of its DNA before moving into Mitosis.

During Mitotic phase the cell separates its DNA into two sets to create two genetically identical daughter cells.

Which of the three types of RNA is
involved directly with the process of
transcription?
A. transfer RNA (TRNA)
B. ribosomal RNA (TRNA)
C. messenger RNA (mRNA)

Answers

MRNA is involved directly in transcription

HELP HELP HELP I REALLY NEED THIS

Answers

Answer:

d

Explanation:

i think since more step

PLEASE HELP: EARH SCIENCE
Which is an accurate statement about the different types of radiation emitted by the Sun? Select the two correct answers

Radiation with the shortest wavelengths is emitted steadily and constantly from the sun.

Radiation with the longest wavelengths is emitted steadily and constantly from the sun.

Radiation with the longest wavelengths is most likely to cause wide variation in Total Solar Irradiance.

Radiation with the shortest wavelengths is most likely to cause wide variation in Total Solar Irradiance.

Answers

Answer:

Radiation with the longest wavelengths is emitted steadily and constantly from the sun.

Radiation with the shortest wavelengths is most likely to cause wide variation in Total Solar Irradiance.

Radiations with the longest wavelengths is emitted steadily and constantly from the Sun and the radiations with the shortest wavelengths is most likely to cause wide variation in the total solar irradiance. Thus, the correct options are B and D.

What are the solar radiations?

Solar radiation is often called as the solar resource or simply sunlight. It is a general term which is used for the electromagnetic radiations that are emitted by the Sun. Solar radiations can be captured and turned into useful forms of energy, such as heat and electricity, using a variety of different technologies.

The radiations with the longest wavelength is emitted steadily and constantly from the Sun and the radiations with the shortest wavelengths is most likely to cause wide variation in the total solar irradiance.

Therefore, the correct options are B and D.

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Distinguish between smooth endoplasmic reticulum and rough endoplasmic reticulum.

Smooth endoplasmic reticulum has vacuoles attached to its surface.

Smooth endoplasmic reticulum has ribosomes attached to its surface.

Rough endoplasmic reticulum has ribosomes attached to its surface.

Rough endoplasmic reticulum has vacuoles attached to its surface.

Answers

Answer:

Rough endoplasmic reticulum has ribosomes attached to its surface.

Explanation:

Rough endoplasmic reticulum has ribosomes attached to its surface.

and smooth endoplasmic reticulum does not

Using 3-5 sentences explain how human activties can affect climate change.

Answers

Answer:

Human activities can affect climate change because of just how much waste we produce. One huge example is our burning problem, which slowly strips away at the ozone layer that protects animals from heat and melting snow. Because of the ozone layer, the arctic has been protected for many years but now it's slowly disappearing, melting ice and killing animals who have not learned to survive in such hot weather. Another example is when humans cut down too many trees to sustain the environment; it often causes a massive lack in natural oxygen and unroots many homes of small critters and worms. In conclusion, humans can heavily affect climate change because of our ignorance and how we refuse to learn for the future.

Explanation:

agonists generally _______ activity at the synapse while antagonists generally ______ activity at the synapse.

Answers

Agonists activate the receptor thereby increasing activity at the synapse while antagonists generally prevent agonists from activating the receptors thereby decreasing activity at the synapse.

An agonist is the component that has the ability to increase the activity carried out by another substance.

The agonists work from their faculty of coupling to a cell-type receptor, in this way, they manage to generate a certain action in the cell.

The antagonists are the compounds that cause the opposite when they bind to the receptor, they cause a blockade by decreasing the activation of a synaptic receptor.

Therefore, we can conclude that agonists are compounds capable of increasing the action of synapse and blockers (antagonists) decrease activity at the synapse.

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HELP PLEASE!!!!!!!!!!!!!!!!

Answers

Answer:

Sandatone-1

Igneous Rocks-4

Shale-2

Limestone-3

Explanation:

How body responds when the body temperature increases

Answers

When body temperatures rise, the body reacts by increasing blood flow to the skin's surface, taking the heat from within the body to the surface. This means sweat. As the sweat evaporates, the body cools down.

When the temp rises the body reacts a certain way , which is increasing blood flow into the skin surface.

Please i need help with this....

Answers

Answer:

Punnett squares

W is dominant

w is recessive

       W            w

W    WW        Ww

w     Ww        ww

Explanation:

Punnett squares

W is dominant

w is recessive

       W            w

W    WW        Ww

w     Ww        ww

03.02 MC) What do weather and climate have in common?

Answers

Here is the answer:
This is the answer I hope this helps you

What is eternatus????​

Answers

Eternatus (Japanese: ムゲンダイ Mugendina) is a dual-type Poison/Dragon Legendary Pokémon introduced in Generation VIII. While it is not known to evolve into or from any other Pokémon, the player battles a powered-up form of Eternatus known as Eternamax Eternatus in the climax of Pokémon Sword and Shield.

Answer:

Eternatus is a Poison/Dragon-type Legendary Pokémon

Explanation:

Eternatus (ムゲンダイナ Mugendaina) is a Poison/Dragon-type Legendary Pokémon introduced in Generation VIII. It has an Eternamax form known as Eternamax Eternatus.

what is a probable reason that a trait skips a generation?

Answers

What is a probable reason that a trait skips a generation? The trait is recessive.

What is one important difference between savannas and temperate grasslands? A. Savannas only rarely experience fires. B. Temperate grasslands are mostly treeless. C. Savannas are inhabited by grazing mammals. D. Temperate grasslands have nutrient-poor soil.

Answers

The one important difference between savannas and temperate grasslands

is that Temperate grasslands are mostly treeless.

Temperate grasslands have varying types of plants and animals in the

region. They have very few trees and are mainly dominated by grasses.

The temperate grasslands have lesser amount of rainfall than the

savannas.

The Savannas have different types of plants ranging from shrubs to

woody trees. The temperate grasslands have nutrients due to the

formation of organic matter from dead plants leaves and roots and aren't

generally regarded as having nutrient poor soil.

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Which is not a source of carbon dioxide gas?

Answers

Answer:oxygen.

Explanation: Photosynthesis does not produce carbon dioxide. It takes up carbon dioxide and water and releases oxygen.

f(x)=(7x-2)(5x-8)(x+5)(x-6) has zeros at x=-5, x=2/7, x=8/5, and x=6.


What is the sign of f on the interval -5

Choose 1 answer:

(A) f is always positive on the interval.

(B) f is always negative on the interval.

(C) f is sometimes positive and sometimes negative on the interval.

Answers

Answer: always negative) :p

Explanation: khan :)

Answer:

always negative!

Explanation:

How does your body respond to a decrease in blood glucose

Answers

Answer:

When blood sugar drops too low, the level of insulin declines and other cells in the pancreas release glucagon, which causes the liver to turn stored glycogen back into glucose and release it into the blood. This brings blood sugar levels back up to normal.

Explanation:

hope this helps!

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Answer:

Glucose is a sugar that comes from the foods we eat, and it's also formed and stored inside the body. It's the main source of energy for the cells of our body, and is carried to each cell through the bloodstream. Our brains depend on glucose to function, even when we're sleeping.

The blood glucose level is the amount of glucose in the blood. When these levels (also called blood sugar levels) drop too low, it's called hypoglycemia (pronounced: high-poe-gly-SEE-me-uh). Very low blood sugar levels can cause serious symptoms that need to be treated right away.

Low Blood Sugar Levels in Diabetes

People with diabetes can have low blood sugar levels because of the medicines they have to take to manage their diabetes. They may need a hormone called insulin or diabetes pills (or both) to help their bodies use the sugar in their blood.

These medicines help take the sugar out of the blood and get it into the body's cells, which makes the blood sugar level go down. But sometimes it's a tricky balancing act and blood sugar levels can get too low.

People with diabetes need to keep their blood sugars from getting too high or too low. Keeping blood sugar levels in a healthy range means balancing when and what they eat, and when they exercise with when they take medicines.

Hope this helps...;-]

Explanation:

Why the body needs more water after exercising/performing rigorous activity

Answers

Answer:

Sweat and dehydration. When you exercise, your body sweats as it tries to return to its optimal temperature. As sweat evaporates from your skin, it removes heat from the body, but you also lose body fluid. So, you need to drink fluid during exercise to replace the fluids you lose when you sweat.

Fluids keep your body hydrated; without them your body won’t function at its best.  

If you don’t drink enough fluid:

Your body temperature and heart rate may rise. That’s because when the total amount of water in your body is below normal level (hypohydration) your body can’t properly regulate heat.  You may feel more fatigued than usual. You may not be able to think clearly – your motor control, decision-making abilities and concentration may be impaired.  Your body’s functions may slow down – this includes gastric emptying, so you may feel uncomfortable in your stomach. Your performance in sport or exercise may not be as good as it could be. The impact is even worse when you’re active and dehydrated in hot conditions.What hydration means :

The amount of water you need depends on a range of factors, such as climatic conditions, your health, your clothing, your exercise intensity and duration. So, being well hydrated will differ per person and situation.

As a guide, you probably need more fluid if:

you sweat heavily you have certain medical conditions, such as diabetes or heart disease you have cystic fibrosis, which means you have a high concentration of sodium in your sweat  you are using a medication that can act as a diuretic, causing your body to lose more fluid you have a bigger body size you are fit (because fitter people tend to sweat more and earlier in their exercise) you are doing vigorous exercise you are active in hot or humid conditions.

Thirst isn’t the best indicator that you need to drink. In fact, if you feel thirsty, you are probably already dehydrated.

A good test of dehydration is the colour of your urine. If it’s pale and clear it means you’re well hydrated. The darker it is, the more fluid you need to drink.

Another sign of dehydration is a lack of sweat during vigorous activity, when you expect to sweat. No sweating is a sign that you’re both dehydrated and probably suffering heat exhaustion.

What dehydration means :

Dehydration occurs when your body’s water content is too low. Here are some body signals that indicate you haven’t had enough fluid:

headaches fatigue mood changes slow reaction times dry nasal passages dry or cracked lips dark coloured urine muscle cramps weakness confusion hallucinations.

If you experience any of these symptoms, you may need to increase your fluid intake.  

If you don’t rehydrate, your physical and mental performance is likely to be affected. A loss of fluid equal to two per cent of body mass (for example a 1.4 kg loss in a 70 kg person) is enough to cause a detectable decrease in performance. A loss of fluid equal to more than two per cent means you risk nausea, vomiting, diarrhoea and other gastro-intestinal problems.  

It’s not possible to train your body to handle dehydration, so don’t delay fluid replacement to ‘get used to dehydration’. When you need water, you need it.

Sweat and dehydration

When you exercise, your body sweats as it tries to return to its optimal temperature. As sweat evaporates from your skin, it removes heat from the body, but you also lose body fluid.  

So, you need to drink fluid during exercise to replace the fluids you lose when you sweat. That way, you’ll reduce the risk of heat stress, maintain normal body function, and maintain performance levels. The general rule is: if you’re sweating, you need to be drinking fluids.

Over-hydration, in rare but severe cases, can lead to death. To avoid this, it can be useful to know your sweat rate. That way, you can work out exactly how much you should be drinking. Or, talk to your GP or an accredited sports dietitian for a fluids plan.

To work out your sweat rate:

Empty your bladder. Weigh yourself in minimal clothing, as close to the start of exercise as possible (this is your initial weight). Record the ambient temperature. Do your exercise session. Record the volume of any fluid you consume during your exercise session (fluid).  Estimate (or measure!) urine losses during your exercise session (urine).  Weigh yourself again at the end of your session, in the same clothing as before - be sure to towel off any excess sweat from your body first (this is your final weight). Your weight change during exercise, plus any fluids consumed, minus any urine losses, reflects your total fluid loss for that session. To work this out: Subtract your final weight from your initial weight. Add the weight of fluid (in kg) that you consumed while exercising. Subtract the weight of fluid (in kg) you lost through urination. To make this into an hourly rate, divide it by the number of hours you spent exercising.  

Sweat rate (L/hr) = [initial weight (kg) – final weight (kg) + fluid (kg*) – urine (kg)] / time (hrs)

(*One litre of water or urine is equivalent to one kilogram.)

Remember, this is your sweat rate when exercising at a particular ambient temperature. Your sweat rate will change with the temperature, so it can be useful to measure your sweat rate at different times of the year.  

Photosynthesis and respiration depend on each other for the exchange of: carbon dioxide and oxygen water and carbon dioxide water and oxygen carbon and oxygen

Answers

carbon dioxide and oxygen

Briefly summarize the structure of a fern

Answers

Answer:

The structure of a fern. Ferns have 3 major parts – the rhizome, the fronds and the reproductive structures called sporangia. ... An erect rhizome, which is a solid mass that gives rise to a tuft of fronds. You can see this type of rhizome on a king fern or a crown fern.

Explanation:

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Other Questions
I need this question please help with this on the picture What's the biggest concern people have about mergers?Question 8 options:A: They result in a concentration of power, which can lead to monopolies.B: They lead to the development of generic brands that produce inferior goods.C: They drive down the cost of labor, leading to greater unemployment.D: They lead to greater competition and force businesses to cut corners to stay in operation. Which composite function can be used to find theforce of the object based on its volume?The density of titanium is 4.5 g/cm3. A titanium objectis accelerating at a rate of 800 cm/s2. The mass ofthe object can be modeled by the function m(v) =4.5v, where v is the volume in cubic centimeters.Additionally, the force of the object can be foundusing the function F(m) = 800m.A. F(m(v)) = 177.8VB. F(m(v)) = 795.5vC. F(m(v)) = 804.5vD. F(m(V)) = 3,600V find the area of given figure what is cell division? What do you think will happen to the convention currents in the mantle if the interior of Earth eventually cools down A young couple purchases their first new home in 2011 for $95,000. They sell it to move into a bigger home in 2018 for $105,000. Rafel knows that lessons learned is a valuable aid to future projects. When should he and his team addresslessons learned on a project?Select an answer:Add lessons learned as a topic in status meetingsReview past lessons learned so a new one does not have to be created,Create lessons learned at the end of the project.Brainstorm lessons learned at the beginning of a project For his long distance phone service, tony pays $3 monthly fees plus 11 cents per minute. Last month, Tony's long distance bill was $22.03. For how many minutes was tony billed Describe how the words Science and optics would appear when viewed in a plane mirror? Jane is watching her classmate give a presentation discussing the varied beliefs about global warming. By the end of the presentation, she only remembers her classmates discussion of how many believe global warming is caused by human activity. Which appears to be challenging Janets perception? If all sides of a triangle are congruent then all sides of a triangle are congruent....write the given and proof Cash Dividends on Common and Preferred Stock Lemon Inc. has the following information regarding its preferred and common stock: Preferred stock, $30 par, 12% cumulative; 300,000 shares authorized; 150,000 shares issued and outstanding Common stock, $2 par; 2,500,000 shares authorized; 1,200,000 shares issued; 1,000,000 outstanding As of December 31, 2019, Lemon was 3 years in arrears on its dividends. During 2020, Lemon declared and paid dividends. As a result, the common stockholders received dividends of $0.45 per share. Required: 1. What was the total amount of dividends declared and paid during 2020? Total dividends declared and paid $fill in the blank c3f04df87fe8040_1 2. During 2020, what journal entry was made at the date of declaration? Given the following absolute value function find the range.f(x) = |x + 5| -8Range: [5,00)Range: [-5,00)Range: [-8,00)Range: [8,00) If you start with 4.5 moles of aluminum and 6.5 moles of copper chloride to make aluminum chloride and copper, what is the limiting reagent?2Al + 3CuCl -> 2AlCl3 + 3Cu You wish to have $2000 in 3 years to buy a fancy new stereo system. How muchshould you deposit each quarter into an account paying 6% compounded quarterly? Select the statement that best justifies the conclusion based on the given information.If a(b + c) = d, then ab + ac = d.associativecommutativedistributiveclosure Acting with probable cause, the police arrested a man in connection with the armed robbery of a liquor store. After being given Miranda warnings, the man confessed to the robbery but denied his involvement with several other recent armed robberies of businesses in the area. He was formally charged with the one robbery and put into a cell with a paid informant working undercover for the police. The informant had been instructed to find out what he could about the other robberies but not to ask any questions. The informant began talking about a convenience store robbery in which a bystander was shot and seriously injured by the robber, and he deliberately misstated how it happened. The man, unaware that his cell mate was an informant, interrupted to correct him, bragging that he knew what really happened because he was there, and proceeded to make incriminating statements about the robbery. The man was subsequently charged with armed robbery and attempted murder in the convenience store robbery.At a motion-to-suppress hearing on that charge, if the man's attorney moves to exclude the statements made to the informant, should the motion be granted?A. Yes, because the informant deliberately elicited incriminating statements in violation of the man's Sixth Amendment right to counsel.B. Yes, because the informant's conduct constituted custodial interrogation in violation of the man's Fifth Amendment privilege against self-incrimination.C. No, because the man had not yet been charged with the robbery of the convenience store when he made the statements to the informant.D. No, because the informant's conduct did not constitute interrogation. Lucinda is writing a coordinate proof to show that a diagonal of a parallelogram partitions the parallelogram into two equal areas. A parallelogram graphed on a coordinate plane. The vertices of rectangle are labeled as K L M and N. The vertex labeled as K lies on begin ordered pair 0 comma 0 end ordered pair. The vertex labeled as L lies on begin ordered pair x comma 2 y end ordered pair. The coordinate of vertex M is left blank. The vertex labeled as N lies on begin ordered pair 3 x comma 0 end ordered pair. A diagonal is drawn between points K and M.Enter your answers in the boxes to complete Lucinda's proof.Since KLMN is a parallelogram and a parallelogram's opposite sides are parallel and congruent, the coordinates for M are (4x, 2y).In KMN, the length of the base is and the height is . So an expression for the area of KMN is .In KLM, the length of the base is 3x and the height is 2y. So an expression for the area of KLM is .Comparing the area of the two triangles that are formed by a diagonal of the parallelogram shows that a diagonal of a parallelogram partitions the parallelogram into two equal areas.