Energy flow through an
ecosystem is
A. completely random
B. a one-way pathway
C. always towards the Sun
D. a dual-directional pathway

Answers

Answer 1
Energy flow is the flow of energy through
living things within an ecosystem. All living
organisms can be organized into producers
and consumers, and those producers and
consumers can further be organized into a food
chain. Each of the levels within the food is a trophic level.

Related Questions

Important steps in sequencing pure proteins include all of these except: a. Determining the amino acids on the ends of the smaller peptides b. Determining the isoionic pH of the protein c. Determining the amino acids on the ends of the protein d. Breaking the protein into smaller peptides e. Determining the amino acid composition

Answers

Answer:

b. Determining the isoionic pH of the protein

Explanation:

The sequencing of pure proteins is nothing more than the analysis of the amino acids present in isolated proteins. This analysis is composed by the study of the sequence that the amino acids assume within the protein, the amino acids present in the extremities and the constitution of each one of these amino acids. In summary, we can state that protein sequencing refers to the constitution of these proteins. In this case, the isotonic pH of these proteins is not relevant information.

How did Alexander Fleming's research solve a societal problem?
• He developed ways to treat inherited diseases.
• He advocated for
regular hand washing to kill germs.
• He discovered a new
type of medicine that could treat infections.
• He discovered the cause of mad cow disease,
an emerging disease.

Answers

He discovered a new type of medicine that could treat infections.

He discovered the 1st antibiotic (penicillin).

1.scientist solve problem in an organised way called ________
2.amoeba move or feed with ________
3.nucleus was first discovered by ________
4. creation of the something new called _______
5. longest cell is________​

Answers

Answer:

1. Scientific method

2. pseudopods

3. In 1909, Ernest Rutherford’s

4. innovation

5. nerve cell

What is the constant of “which date works best for a homemade fly trap?”

Answers

Answer:

Mix scraps of meat (the older, the better) with something sweet. Lots of people swear by using rotten fish or shrimp, which probably work best because they smell so much. Bait for Fruit Flies: Use fruit (the riper, the better), apple cider vinegar, fruit juice, syrup, wine, beer, or any combination

Which of the following describes a cnidarian with a polyp body form?
a tube-like body attached to a firm surface with tentacles on the opposite side of the attachment, surrounding the animal's mouth
an animal with a body lacking tissue
a body shaped like an umbrella that is capable of swimming and has tentacles hanging below it
an animal body that digests food intracellularly rather than extracellularly within a gastrovascular cavity

Answers

Answer:

a tube-like body attached to a firm surface with tentacles on the opposite side of the attachment, surrounding the animal's mouth

Explanation:

A polyp is a type of body structure that a cnidarian can assume. The cnidarians, in turn, are invetebrate animals of aquatic life. This group of animals includes jellyfish, corals and sea anemones.

In polyp form, cnidarians are not actively moving, although some do move when they feel threatened. This is because they appear as a tubular structure, with one end fixed to the sea floor. The other end presents the animal's mouth, which is surrounded by tentacles that are responsible for capturing the prey needed for food.

Answer:

a tube-like body attached to a firm surface with tentacles on the opposite side of the attachment, surrounding the animal's mouth

Explanation

it's correct

Give Jeason: si System is accepted by all nations in the world.

Answers

it's very practical, because it's on base 10, so conversion between stuff like meters to kilometer is always just a multiplication with 10 to some power

like 1 km = 1000m (10³m)

or 1 m = 10^-3km = 0.001km

same reason for other SI units.

except time, that's base 60, or 12, or 24. that's more complicated, but there isn't any real competition

why is it impossible to eradicate malaria

Answers

Malaria is a difficult disease to control largely due to the highly adaptable nature of the vector and parasites involved.

In an experiment, researchers find that certain neurons in the visual cortex preferentially fire in response to a bar of light that is oriented at a specific angle, and that different neurons similarly respond to bars of light oriented at different angles. This finding provides the strongest evidence for:

Answers

Answer:

Feature detection

Explanation:

Feature detection involves different neurons that are activated in response to specific stimuli. For example, feature detectors are activated in the cerebral cortex through visual stimuli of specific shapes or patterns. These neurons become more and more complex as the stimuli also become progressively more complex and specific. Featured detector neurons have been identified in the toad vision, where they have been involved in the toad's behavior in response to worm-like moving stimuli (e.g., orienting), and the bat auditory cortex, where they have been involved in the measurement of the distance between the bat and its prey.

reasons for classifying organisms​

Answers

Answer:

To be able to sort them into different groups

an iron ball is heated from 50 degree celsius to 2000 degree celsius. what is the state of the iron ball at 2000 degree celsius

Answers

Answer:

It is in liquid state loosing it's magnetic property

Explanation:

Iron melts at 1538 °C after loosing it's magnetic property at 770 °C

If an iron ball is heated from 50 degree celsius to 2000 degree celsius.  The state will be liquid state as it is  loosing it's magnetic property

what is magnetic property of a matter ?

The magnetism  property is defined as the force exerted by magnets by either attracting or repulsing each other.

In a magnetic field of a matter, two important basic particles are the magnetic moments and the electric currents. It is depend on  pressure, temperature, and the applied magnetic field.

Magnetic materials are up three types such as  diamagnetic, paramagnetic and ferromagnetic.

Two Sources of magnetism are electric current and Spin magnetic moments of elementary particles.

The behavior of magnetic  material is completely depend on its structure, electron configuration.

Learn more about magnetic property, here:

https://brainly.com/question/12032379

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what are the two characteristics of Pine due to which it is not placed under sub division angiosperms​

Answers

Answer:

The angiosperms, or flowering plants, are the largest and most species-rich phylum of plants, with more than 250,000 species estimated.

Defining Characteristics

The term "angiosperm" derives from two Greek words: angeion, meaning "vessel," and sperma, meaning "seed." The angiosperms are those plants whose seeds develop within a surrounding layer of plant tissue, called the carpel, with seeds attached around the margins. This arrangement is easily seen by slicing into a tomato, for example. Collectively, carpels together with the style and stigma are termed the ovary, and these plus associated structures develop into the mature

Explanation:

What is the best description of connective tissue? Question 3 options: All of its cells rest on a basal lamina. All of its cells associate via cadherins in their plasma membrane. All of its cells are electrically connected via gap junctions. All of its cells are sparsely distributed in the extracellular matrix.

Answers

Answer:

Connective tissue is a group of tissues in the body that keep the body and its organs in shape while also providing cohesion and internal support.

All of its cells exist sparsely distributed in the extracellular matrix is the best description of connective tissue.

What is connective tissue?

Tissue that sustains, protects and provides structure to other tissues and organs in the body. Connective tissue also stores fat, permits the movement of nutrients and other substances between tissues and organs, and allows the repair of damaged tissue. Connective tissue exists created up of cells, fibers, and a gel-like substance.

Connective tissue is discovered in between other tissues everywhere in the body, including the nervous system. The three outer membranes (the meninges) that surround the brain and spinal cord exist composed of dense inert connective tissue.

Connective tissues bind systems together, form a framework and support for organs and the body as a whole, store fat, transport substances, defend against disease, and assist restoration of tissue damage.

Hence, All of its cells exist sparsely distributed in the extracellular matrix is the best description of connective tissue.

To learn more about connective tissue refer to:

https://brainly.com/question/1985662

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There is a U-tube in which solutions in two arms A and B are separated by a membrane. Arm A contains glucose with concentration of 0.4 mol per liter and sodium chloride with concentration of 0.5 mol per liter. Arm B contains glucose with concentration of 0.8 mol per liter and sodium chloride with concentration of 0.4 mol per liter.
The solutions in the arms of a U-tube (the figure) are separated at the bottom of the tube by a selectively permeable membrane. The membrane is permeable to sodium chloride but not to glucose. Side A is filled with a solution of 0.4 M glucose and 0.5 M sodium chloride (NaCl), and side B is filled with a solution containing 0.8 M glucose and 0.4 M sodium chloride. Initially, the volume in both arms is the same.

If you examine side A in the figure after three days, the concentrations of glucose and NaCl should be _____________.

Answers

Answer:

0.4 M glucose, 0.45 M NaCl

Explanation:

I hope this helped!

what carbon compound stores energy for the cell and sometimes provides structural support

Answers

Answer:

Carbohydrates

Explanation:

Carbohydrates are a group of macromolecules that are a vital energy source for the cell, provide structural support to many organisms, and can be found on the surface of the cell as receptors or for cell recognition.

Answer:

Carbohydrates

Explanation:

answer f and g urgently
it relates to the picture ​

Answers

F is option A
G is option D
The answer to option f is A because you went from 1 pair to 2 pairs

The answer to g is D

Các tuyến nào sau đây được gọi là các tuyến pha?

Answers

Answer:

tuyến tụy, tuyến sinh dục

Explanation:

Validity of an experiment is based upon:

Answers

Answer:

it is based upon the correlation between the results of your measurements and the results of the criterion measurement.

I hope this helps

NOT A QUIZ: 10 POINTS!

Answers

Answer:

a. (black fur): phenotype

b. (AA, Aa, aa): genotypes

c. (Aa): heterozygous

d. (aa): hom0zygous recessive

e. (AA): hom0zygous dominant

Explanation:

Which of the following is NOT an adaptation for deep diving in Cetaceans? Having a lot of myoglobin in the muscles to store oxygen Having increased hemoglobin concentrations to store more oxygen Slowed heart rate Blood flow is shifted from the brain to the extremities Collapsing the lungs to compensate for increasing water pressure during deep dives

Answers

Answer:

Hence the correct answer is Blood flow is shifted from the brain to the extremities.

Explanation:

Blood flow is shifted from the brain to the extremities - most marine mammals have an in-depth network of blood vessels towards their brain which is understood because of the retia mirabilia. These reduce the temperature in the extremities.

How do protist get inside the gut of a termite?

Answers

Explanation:

their mutualism parasites they benefits off of The termite because of the food they eat and the termite just live with it , letting it eat the food from the inside of their stomach , and protists live inside the stomach as a home like parasites do but this is mutualism because the termite lets them

which of the following would not regulate genes in a eukaryote

Answers

Explanation:

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What is the function of the enzyme RNA polymerase during transcription?
helps slow down the process of transcription
helps speed up the process of transcription
aids in destroying the mRNA sequence that was read
aids in packaging amino acids for use at a later time

Answers

Answer:

The correct answer is - helps speed up the process of transcription.

Explanation:

RNA polymerase binds to the DNA sequence and copy a single DNA sequence into RNA and helps a single gene to produce hundreds or even thousands of RNA molecules during transcription.

It helps in the speed up the transcription by copying the sequence and producing mRNA for translation process later.

Answer:

I hope this helps.

Explanation:

11
Select the correct answer.
Which part of an atom has most of its mass?
A.
electrons
B.
neutrons
Oc.
nucleus
OD.
protons
Reset

Answers

The part of an atom that has the most mass is Electrons.

Answer:

C NUCLEUS

Most of an atom's mass is in the nucleus—a small, dense area at the center of every atom, composed of nucleons. Nucleons include protons and neutrons. All the positive charge of an atom is contained in the nucleus, and originates from the protons.

Based on the information in the graph, what is the best conclusion to draw
about Africa?
World Population Growth
20,000
10,000
World
5,000
Asia
2,000
Africa
1,000
Europe
WANIA
500
200
100
United States,
Canada, and Greenland
Mexico,
Central America, Caribbean Islands,
and South America
Oceania (Australia and
nearby islands in the Pacific)
50
20
10
1950
1960
1970
A. The fertility rate is very low.
1980
1990
2000
2010
2020
2030
2040
2050
B. It has reached its carrying capacity.
C. The birthrate is higher than the death rate.
oc
D. It has few resources.

Answers

The correct answer is C. The birthrate is higher than the death rate.

Explanation

The graph is about the growth of the world population, this shows the population growth of the world, Asia, Africa, Europe, United States, Canada and Greenland, Mexico, Central America, Caribbean Islands, and South America, and Oceania (Australia and nearby islands in the Pacific). This graph covers the time from 1950 to 2050 divided into decades. In the specific case of Africa in 1950 it had a population of close to 300 million people. Subsequently, in 2010 the population of Africa was close to 1 billion people and the projection for the year 2050 is 2 billion people. According to this, it can be concluded that the birth rate is higher than the death rate because the population has a growth trend, which indicates that more people are born than die.

¿Cuál se considera la “barrera simbólica” del nivel de CO2 en la atmosfera? ¿Cuál es el nivel de CO2 en la actualidad? ¿Qué significa esto? Menciona tres consecuencias de esta situación.

Answers

Answer:

413,55 ppm

Explicación:

413,55 ppm es el nivel de dióxido de carbono actual en comparación con el nivel de dióxido de carbono que es de aproximadamente 280 ppm antes de la revolución industrial. Esto significa que la revolución industrial aumenta la concentración de gas dióxido de carbono en la atmósfera, que es la principal causa del derretimiento de los glaciares, el cambio climático y el calentamiento global. Hay una gran cantidad de dióxido de carbono que se libera de las industrias, lo que es responsable del aumento de la concentración de dióxido de carbono en la atmósfera.

Using a simple aproxamation above,calculate the volume of the right circular cylinder with a radius of 2 meters and a height of 9 m

Answers

Answer:

Volume = 113.112 m³

Explanation:

Given the following data;

Radius = 2 meters

Height = 9 meters

To find the volume of a right circular cylinder;

The volume of a right circular cylinder is calculated by multiplying the area of its circular base with the height of the cylinder.

Mathematically, the volume of a right circular cylinder is given by the formula;

Volume= πr²h

Where;

r is the radius of the circular base.

h is the height of the cylinder.

Substituting the values into the formula, we have;

Volume = 3.142 * (2)² * 9

Volume = 3.142 * 4 * 9

Volume = 113.112 m³

describe the stages in the process of selective breeding​

Answers

Answer:

Selective breeding takes place over many generations. These are the main steps for both plants and animals involve:

Decide which characteristics are important enough to select.Choose parents that show these characteristics from a mixed population. They are bred together.Choose the best offspring with the desired characteristics to produce the next generation.Repeat the process continuously over many generations, until all offspring show the desired characteristics.

Hope this answer helps you..!!

.

.

Select this answer as the BRAINLIEST!!

Answer:

I think the answer is Selective breeding takes place over many generations. These are the main steps for both plants and animals involve:

Decide which characteristics are important enough to select.

Choose parents that show these characteristics from a mixed population. They are bred together.

Choose the best offspring with the desired characteristics to produce the next generation.

Repeat the process continuously over many generations, until all offspring show the desired characteristics.

Hope this answer helps you ^^

Explain why the biomass of secondary consumers is always lower than the biomass of primary consumers. ​

Answers

Answer:

Because energy is lost in the transfer from one level to the next, there is successively less total energy as you move up trophic levels. In general, we would expect that higher trophic levels would have less total biomass than those below, because less energy is available to them.

Define Aerobic

Thank you! :)

Answers

Answer:

Aerobics is a type of physical activity that combines rhythmic aerobic exercise with stretching and strength training exercises to improve overall fitness.

 

~OAmalOHopeO

An example of a density-independent factor that affects a population's growth is Select one: a. insects eating your tomato plants. b. your tomato plants competing for water. c. a fungus infecting your tomato plants. d. frost killing all of your tomato plants. e. All answers are correct.

Answers

Answer:

The correct answer is - D. frost killing all of your tomato plants.

Explanation:

Density independent factors are the factors that are limiting factor that are affects the size of population of the living beings without being affected by density of population. In such factors density of population does not play any role or affect the size of population.

In the given option other than frost all are density dependent factors affecting size of population.

Other Questions
A bucket contains 4 red balls that are numbered 1, 2, 3, 4. It also contains 6 black balls that are numbered 5, 6, 7, 8, 9, 10. Two balls are drawn from the bucket, one at a time, without replacement. Use this information to answer the following probability questions. Express answers as fractions, or round decimal answers to 4 decimal places. a. What is the probability that the first ball is even and the second ball is odd 2 + 16 + 48 factorizar alguien que me ayude?? What is a measure between the difference in start and end positions? Which of the following statements is untrue? Group of answer choices Denotative meaning involves thoughts and feelings associated with words. Language is governed by rules. Not all linguistic symbols are spoken or written words. Denotative meanings are formally recognized definitions of a term. Cch hc t vng nh nhanh v nhiu Mnh th mochi mochi ri ng l hiu qu nhng ph qu t Mnh thng hay nn v khng c nhiu ng lc hc Cn ngi ch cch hc v app Find the area of the triangle Name and describe the different divisions of the peripheral nervous system. Darryl won 80 super bouncy balls playing the bean bag toss at the county fair. At school he gave one to every student in his math class. he only has 55 remaining. How many did he gave away? show the work! Find the length represented by x for each pair of similar triangles.18cm, 9cm, and x30cm, 15cm, and 25cm calculate the volume of the object immersed in the water in the water in the adjoining figur. a body of radius R and mass m is rolling horizontally without slipping with speed v. it then rolls us a hill to a maximum height h=3v2/4g Short Questions: a) What is website? How can we browse internet using website? an atom contains positive protons and negative electrons. Why atom is electrically neutral. You are the IT Administrator for the CorpNet.local domain. You are in the process of implementing a group strategy for your network. You have decided to create global groups as shadow groups for specific departments in your organization. Each global group will contain all users in the corresponding department. In this lab, your task is to: Create the following global security groups on the CorpDC server in their corresponding OUs: OU Creation Location New Group Name Accounting Accounting Research-Dev Research-Dev Sales Sales MY NOTES Verify that the function satisfies the three hypotheses of Rolle's Theorem on the given interval. Then find all numbers c that satisfy the conclusion of Rolle's Theorem. (Enter your answers as a comma-separated list.) f(x) = 2x2 4x + 3, [1, 3 Why is the formation of fructose-1,6-bisphosphate a step in which control is likely to be exercised in the glycolytic pathway 1. The speed of Sun in km/s is __________ An eastbound train and a westbound train meet each other on parallel tracks heading in opposite directions. The eastbound train travels 6 miles per hour faster than the westbound train. After 2 hours, they are 276 miles apart. At what speeds are the two trains traveling Please helpASAP 10 points PLzzZZHELPPPPThe angle between the top of a building and a point 80 feet away from the base (on level ground) is 70 . To the nearest foot, how tall is the building?