what are the limitations of the respiratory system?

Answers

Answer 1

Answer:

Having gills, or the ability of gills.

Explanation:

Our lungs can't filter out water and use the oxygen in the water, sadly.

And, we can't hold our breath for that long, compared to other mammals (the only way that we can hold our breath for a long time is if we breathe in pure oxygen).


Related Questions

Explain the main role of the kindeys and skin.A.The kidney and skin works to protect our organs from the sun.B.The kidneys and skin. Are nessecary to remove waste products that the body produces .C.The kidney and skin is used to keep our body warm.D. The kidney and skin only work together to filter the liquid part of blood

Answers

B.The kidneys and skin are necessary to remove waste products that the body produces

I hope this helped

The graph shows the motion of a car. Which segments
show that the car is accelerating? Check all that apply.
Velocity vs Time
A
50
B
40
E
C
B
30
D
E
20
A
10
D
0
0 1 2 3 4 5 6 7 8 9 10
Time (s)

Answers

Answer:

a c e

Explanation:

A _______ climate has moderate rainfall and moderate temperatures which both remain constant throughout the year.

Answers

Answer:

temperate climate

Explanation:

Temperate climates are generally defined as environments with moderate rainfall spread across the year or portion of the year with sporadic drought, mild to warm summers and cool to cold winters.

The mutagens that result in cancer damage DNA by

Answers

Answer: BRCA1, BRCA2, and p53

Explanation:  

If a person has an error in a DNA repair gene, mistakes remain uncorrected. Then, the mistakes become mutations. These mutations may eventually lead to cancer, particularly mutations in tumor suppressor genes or oncogenes.

difference between speed and lvelocity in three point

Answers

Speed, being a scalar quantity, is the rate at which an object covers distance. ... On the other hand, velocity is a vector quantity; it is direction-aware. Velocity is the rate at which the position changes. The average velocity is the displacement or position change (a vector quantity) per time ratio.

Explanation:

(1)speed is scalar quantity

(1) velocity is vector quantity

(2)speed can never be negative or zero and it is always positive

(2) velocity can be negative or zero and it can be positive

(3)speed is time taken to travel a specific distance

(3) velocity is time taken to travel minimum distance from 1 point to other point

(4)speed=distance upon time

(4) velocity = displacement (minimum distance between 2 points ) upon time

did u understand if not then comment


5. Which of the following are enzymes?
1 point
Lipase
Lactose
Amylase
Xylase
Cellulose
Glucose
Fructase
Fructose
Lactase
NONE OF THESE!!!

Answers

Answer:

Lipases, Amylase, Lactase, and Cellulase. Did this Help?

Explanation:

Lipases – a group of enzymes that help digest fats in the gut.

Amylase – helps change starches into sugars. Amylase is found in saliva.

Maltase – also found in saliva; breaks the sugar maltose into glucose. Maltose is found in foods such as potatoes, pasta, and beer.

Trypsin – found in the small intestine, breaks proteins down into amino acids.

Lactase – also found in the small intestine, breaks lactose, the sugar in milk, into glucose and galactose.

Acetylcholinesterase – breaks down the neurotransmitter acetylcholine in nerves and muscles.

Helicase – unravels DNA.

DNA polymerase – synthesize DNA from deoxyribonucleotides.

Cellulase -- is any of several enzymes produced chiefly by fungi, bacteria, and protozoans

A student wants to find out if the green coloring in grass is a mixture of dyes. He uses a solvent to dissolve the green coloring from some grass. He then separates the solution of the green coloring from the remaining grass. Which of these methods is used to separate the solution of the green coloring from the remaining grass?Immersive Reader (1 Point) Boiling Evaporation Chromatography Filtration

Answers

Answer:

The correct answer is - filtration.

Explanation:

Filtration is the extracting the dissolved or suspended solids from a liquid or solvent passed from a substance with small pores, called filter, that separates the solid with a larger size than the pores of the filter. The liquid goes through the filter known as filtrate.

In the given case, the remaining grass can be separated from the solvent by the process of filtration. Pass the remaining grass with filtrate through the filter.

The correct answer is - filtration.

What soil type is the most fertile of all soils?
O Vertisols
Histosols
O Mollisols
O Oxisols

Answers

Answer:

Alfisols are moderately leached soils that have relatively high native fertility.

Explanation:

globalrangelands

Answer:

Vertisols: Shrink and swell

Histosols: Organic and wet

Mollisols: Fertiles

Oxisols: Very weathered

The answer would be C, Mollisols

How many poles does Jupiter’s magnetosphere have? a. 2 c. 8 b. 4 d. 9

Answers

Answer:

A. 2

Explanation:

I was wrong the first time, I wasn't thinking of jupiter for some reason. sorry!

Answer:

A. 2

Explanation:

Jupiter's magnetic field is quite different from that of all other known planets — it essentially has two magnetic south poles instead of just one, a new Nature study finds. Scientists analyzed Jupiter with NASA's Juno spacecraft, which reached the planet sometime in 2016.

In the carbon cycle, in what form are carbon atoms generally returned to the atomosphere? carbon dioxide b carbon monoxide simple sugars methane​

Answers

Answer:

The carbon cycle is a process where carbon is removed and returned to the atmosphere. The ways of returning carbon to the atmosphere

Explanation:

What is the kinetic energy of a 2,000 kg boat moving at 5 m/s
Subject: Science

Answers

The formula for kinetic energy is 1/2*m*v^2. Or really, this would be the average kinetic energy. Divide the mass in half then square the velocity to get (1000kg)*(25m^2/s^2) = 25,000 Jules.

How is a bone cell and animal cell similar?​

Answers

Bone is composed of four different cell types; osteoblasts, osteocytes, osteoclasts and bone lining cells.

A bone cell and animal cell are similar in their function and presence in a body.

Cells

A Cell is known for its function and structure.

A bone cell is made of tissue.

A bone cell protects the internal organs and stores minerals such as phosphorous and calcium.

An animal cell has a cell membrane and has functions that relate to producing energy and storing it.

Animal cells make proteins and transfer molecules.

Learn more about Cells here:

brainly.com/question/13920046

what is an organism that must eat other organisms to obtain energy called?

Answers

Answer:

Heterotrophs

Explanation:

Answer:

consumer because animals and humans eat other animals to survive

You are sitting by a lake. You drop a leaf on the lake and notice that it floats on the top of the water. Which of the following properties of water could help explain what you observed?

Answers

Answer:

Issuen Shingeki... Messatsu!

Explanation:

What you've just witnessed is something called "Buoyant force".

Buoyancy is the upthrust in the particles between the Atoms of the leaf and the water. They have the opposite charge, allowing them to repel each other- Ultimately allowing the leaf to float.

Or simply, the leaf is lighter and is less dense.

Answer:

a.

Explanation:

It has a strong tension.

Describe two types of evidence–other than the comparison of DNA sequences–that can be used to determine the phylogeny of organisms. Discuss one strength of each type of evidence you described.

Answers

Answer: Comparing the DNA sequence of the organisms can also tell you how closely related species they are. It can give you even more information since the original DNA is how the amino acid sequence of cytochromes is coded for.

Looking at embryonic development also helps you determine the phylogeny of organisms because a way an embryo develops can be very similar to the way another species develops but then both are full-grown they look very different and its tuff to explain how close they might be related

What is an example of both a renewable and non-renewable resource????

Answers

Answer:

Nonrenewable energy resources, like coal, nuclear, oil, and natural gas, are available in limited supplies. ... Renewable resources are replenished naturally and over relatively short periods of time. The five major renewable energy resources are solar, wind, water (hydro), biomass, and geothermal.

Explanation:

Cell theory holds that new cells arise from preexisting cells. Which of the following is most likely to support this idea of cell theory?

A
evidence that most multicellular animals are larger than unicellular animals

B
evidence that most multicellular animals do not reproduce asexually

C
evidence that unicellular animals do not have organs

D
evidence that cells reproduce sexually and asexually

Answers

Answer:

B that most multicellular animals don't reproduce asexually

DESCRIBE WEATHER IN YOUR OWN WORDS AND GIVE EXAMPLES


please help me with this ik its a dumb question but like my teacher wants a good answer and im dumb please help!

Answers

Answer:

HOW TO DESCRIBE IT: rainy, wet, humid, dry, arid, frigid, foggy, windy, stormy, breezy, windless, calm, still; a spell of good weather; a two-day spell of sunny weather; a spell of rainy weather; Sky: cloudy, overcast, cloudless, clear, bright, blue, gray (BrE grey), dark; a patch of blue sky.                  

EXAMPLE: Weather includes sunshine, rain, cloud cover, winds, hail, snow, sleet, freezing rain, flooding, blizzards, ice storms, thunderstorms, steady rains from a cold front or warm front, excessive heat, heat waves, and more. ... They also provide Special Weather Statements and Short and Long Term Forecasts

Which factor will best help a scientist produce valid experimental results?

Answers

Answer:

Using large sample sizes and multiple replications of experiment

You just went to McDonald's and purchased a Big Mac what type of macromolecule is represented in each of the following?

Answers

Answer:

There are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids), and each is an important component of the cell and performs a wide array of functions. Combined, these molecules make up the majority of a cell's mass.

The heart is an example of which level of organization within an organism?
ocell
organ
tissue
O organ system

Answers

The heart is an organ, so therefore the answer is organ.

The nitrogen cycle is an example of a(n) (blank) cycle. The options are biogeochemical, decomposer, energy, water, denitrification, nitrogen fixation, nitrogen limitation, or photosynthesis.

Answers

Answer: Biogeochemical, Nitrogen Fixation, and Denitrification


Explanation: A biogeochemical cycle is the cycling of a nutrient through the biosphere and the geosphere. Nitrogen fixation happens when Nitrogen Fixating bacteria take in atmospheric nitrogen and release Ammonia as a biproduct. Denitrifying bacteria then take in the ammonia and break it down into nitrite, nitrate, and finally back into atmospheric nitrogen. The cycle then repeats.

The nitrogen cycle is an example of a biogeochemical cycle. The correct option is A.

What is biogeochemical cycle?

The transport and transformation of chemicals in ecosystems is referred to as a biochemical cycle. Wetland hydrologic conditions have a strong influence on these.

These processes cause changes in the chemical forms of materials as well as material movement within wetlands.

These cycles transport the elements required for life to survive throughout the ecosystem.

They are essential because they recycle and store elements, as well as regulate vital elements through physical facets.

A biogeochemical cycle describes how an element or compound, such as water, moves between its various living and nonliving forms and locations in the biosphere.

Water, carbon, nitrogen, phosphorus, and sulfur cycles are all important biogeochemical cycles for living organisms.

Thus, the correct option is A.

For more details regarding biogeochemical cycle, visit:

https://brainly.com/question/1204069

#SPJ2

Why is light emitted by elements when they are heated?

Answers

Answer:

Heating an atom excites its electrons and they jump to higher energy levels. When the electrons return to lower energy levels, they emit energy in the form of light.

Explanation:

hope this helps plz mark brainliest

of the following statements is true?
Only some organs contain cells.
Is it true or not

Answers

Answer:

its true

Explanation:

It’s false...

All organs have cells

The density of a typical nucleus is equal to

Answers

Answer:

2.3×10¹⁷ kg/m³

Explanation:

this is the average density of the nucleus of an atom

Where and how do hurricanes form?

Answers

Answer:

Hurricanes are powerhouse weather events that suck heat from tropical waters to fuel their fury. These violent storms form over the ocean, often beginning as a tropical wave—a low pressure area that moves through the moisture-rich tropics, possibly enhancing shower and thunderstorm activity.

Explanation:

why the eggs of silk moth are kept below 18 degree Celsius in winter?​

Answers

The eggs are kept in a cool place so that they can be stored for a long time. In a favourable condition,they hatch into larva.

Have a great dayyy !!

How do enzymes affect the reactions in which they take part?
A.Most enzymes slow down chemical reactions.
B.Enzymes decrease the activation energy of the reaction.
C.Enzymes increase the activation energy of the reaction.
D.Enzymes are converted into products in the reaction.

Answers

Answer:

B. Enzymes decrease the activation energy of the reaction :)

Explanation:

Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.

Insects and crabs are both animals that have a hard exoskeleton that develops during the larval stages of these organisms. Most insects live on land and crabs live in the water, so how is it possible that their larval stages show this relationships? ​

Answers

Answer:stop cheating

Explanation:

my mom said so

Answer:

Both larval stages show that the exoskeleton/body of the said organism grows into a full being.

Explanation:

This is because the regular stage of growth.

what group of organisms are responsible for capturing energy within ecosystems ?
a. bacteria
b. consumers
c. producers
(I know its not b it has to be either a or b im confused)

Answers

I know you said it’s either a/b, but the only correct answer is c.


Producers (plants),capture energy from the sun and turn it into usable chemical energy for themselves and for the consumers that eat them.
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