Which describes gas exchange in the respiratory system?
A. Gas exchange happens through diffusion.
B. Gas exchange removes oxygen from the body.
C. Gas exchange occurs between the body’s cells and bronchi.
D. Gas exchange protects the body against foreign invaders.

Answers

Answer 1

Answer:

A.

Explanation:

A. Gas exchange happens through diffusion.

Answer 2

Answer:

A

Explanation:


Related Questions

Heyy Guyss Helpt Ill Markt You Brainliestt

Answers

Answer:

1. Photosynthesis transforms light energy into chemical energy

2. chlorophyll captures light energy

3. photosynthesis creates energy from carbon dioxide and water.

Explanation:

Therefore, first 3 statements are true.

I hope it helps.

can you explain in brief about gigatism and dwarfism​

Answers

Gigantism is a condition caused by excessive secretion of STH(somato trope hormone) before puberty. Individuals reach heights of about 2 meters.

Dwarfism(hypophyseal dwarfism) is caused by hyposecretion of STH before puberty. Individuals reach heights of about 1,20-1,30m

Is is all die to hormones.The pituitary gland produces growth hormone.Overproduction of growth hormone by frontal lobe of pituitary gland causes gigantism and it’s low production causes dwarfism

what is the reaction of dehydration

Answers

Answer:

Explanation: people get headaches, dry skin and die

Which of the following types of particles found in an atom has no charge?

Answers

Answer:

neutron has no charge because it is equal in mass

A community switches from a coal power plant to a wind power plant to
obtain electricity. What is a likely outcome of this switch?
A. Bird and bat populations will grow larger.
B. Noise pollution in the community will decrease.
C. Electricity will become less expensive.
D. Acid rain will be reduced.

Answers

Answer:

C. electricity will become less expensive

Explanation:

as wind energy is free, so Electricity will become cheap.

hope it helps! please mark me brainliest..

Merry Christmas good day

Answer: D. acid rain will be reduced

Explanation:

All volcanoes have at least one vent, or opening. Which of the following does not erupt through volcanic vents?

A. lava
B. liquid water
C. gases
D. ashes

Answers

B.Liquid Water
Explanation: lava gushes out ashes go up and gases when it erupts only water does not erupt.

Answer quickly
Explain how fossils are found in different rock layers of the Earth and how this tells us which species were alive during each time period.

Answers

Answer:

Extraction and the other hand, if you want to be able to get it right away from the center...

I really need to know this pls help me

Answers

well are you gonna show us the question
What is the question

Sodium has the atomic number 11. How many electrons are in a sodium ion, which has the symbol Nat?
A.
10
B.
11
C.
12

Answers

Answer:

11

Explanation:

Hope this will help you

Examples of reproductive advantage?

Answers

Answer:

Here are the advantages and disadvantages of sexual reproduction: 1. It creates a preserved and expanding effect. This method of reproduction will help preserve an existing genetic code of an allele to make sure that a certain species does not mutate, which is essential to its multiplication.

Explanation:

hope  this helps please mark  me brainly!!

How is cell differentiation different than mitosis?

Answers

Answer:Cell differentiation is the process by which cells specialize to achieve their required functions. In order for a cell to differentiate, it will express specific genes. mitosis produces cells that are identical to each other (clones).

Explanation:

Answer:

Though the options aren't presented to the question, I believe the correct answer is: Cell differentiation is different than mitosis, for during cell differentiation, it produces cells with different gene expressions. Meanwhile, during mitosis, it produces clones of the same genes.

Hope this helps! Happy Holidays!

what are the effects of sunlight on the aquatic life inhabiting the atlantic ocean?

Answers

Ans: The effects of sunlight on the aquatic life inhabiting your body of water: The North Atlantic current carries warmer water from the south toward the Arctic and back again. Climates in the Northern Hemisphere rely on this circulation to keep winter temperatures in check and assist in the changing of the seasons.

Do you believe that some people have extrasensory perception (ESP)? Why or why not?

Answers

Answer: Many people believe in extra-sensory perception, e.g. the ability to communicate with thoughts, to sense future events or locate radiation with the help of a V-shaped piece of wood. A majority of Americans - 57% - say they believe in psychic phenomena such as ESP (Extra Sensory Perception), telepathy or experiences that can’t be explained by normal means.

Explanation:

For several points!

Please Transcribe this DNA strand into an RNA stand.

TAC AAG CGT TCT GCC AAA ATC

Answers

UTG TTC GCU UGU CGG TTT TUG

Rebekah is studying a molecule and trying to determine if it is DNA or RNA. Which kind of molecule is she studying?

carbohydrate
protein
nucleic acid
lipid

Answers

Answer:

We know that Dna is contained in the nucleus that were the dna is located.So the answer to your question is nucleic acids.

Explanation:

Hope this Helps and have a nice day everyone!!

Answer:

C

ITS C

Explanation:

THATS ALL

How many amino acids does this protein segment contain?

Answers

Answer:  the given protein segment contains 20 amino acids

The given segment of the polypeptide chain is made up of four different types of amino acids, and each amino acid is connected to each other by the peptide bond, and the chain elongates from the N terminal to the C terminal.

What is the significance of amino acids?

There are 20 different standard amino acids that take part in polypeptide chain synthesis, and those are categorized into some particular types such as hydrophobic amino acids, hydrophilic amino acids, charged and uncharged amino acids, etc., and different compositions of the amino acids make different types of proteins. The polypeptide chain is generally synthesized from the N terminal to the C terminal, and here in the given diagram, there are four amino acids, and each amino acid has an amino group, a carboxylic group, a hydrogen group, and one side chain bonded to a single central carbon atom.

Hence, the given segment of the polypeptide chain is made up of four different types of amino acids.

Learn more about the amino acid here.

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How is energy related to the change of state represented by the model?

A. Atoms gain energy as a gas changes in a solid.

B. Atoms gain energy as a gas changes in a liquid.

C. Atoms lose energy as a gas changes in a solid.

D. Atoms lose energy as a gas changes in a liquid.

Answers

Answer:

C.

Explanation:

Atoms lose energy as a gas changes in a solid

hope it helps!

What is the structure labeled Y? the nucleus a chloroplast a cytoplasm the endoplasmic reticulum

Answers

Answer:  Eukaryotic cells — those that make up cattails and apple trees, mushrooms and dust mites, halibut and readers of Scitable — have evolved ways to partition off different functions to various locations in the cell. In fact, specialized compartments called organelles exist within eukaryotic cells for this purpose. Different organelles play different roles in the cell — for instance, mitochondria generate energy from food molecules; lysosomes break down and recycle organelles and macromolecules; and the endoplasmic reticulum helps build membranes and transport proteins throughout the cell. But what characteristics do all organelles have in common? And why was the development of three particular organelles — the nucleus, the mitochondrion, and the chloroplast — so essential to the evolution of present-day eukaryotes.

Explanation:

Answer:

c!

Explanation:

Edge 2022

PLEASE HELP ME !! THIS IS A TEST!! PLEASE!!!!
Under normal conditions, gases diffuse through small holes in the leaves of a plant. when the weather hot and dry, plants may close these openings to conserve water. how are the closures most likely to affect photosynthesis?

A.) They increase the rate of photosynthesis by increasing the amount of water in the leaf
B.) They have little or no effect on photosynthesis because gases do not take part in the process.
C.) they increase the rate of photosynthesis by increasing the amount of oxygen in the leaf
D.) they decrease the rate of photosynthesis by preventing carbon dioxide from entering the leaf
PLEASE HELP ME!! PLEASE ANS THANK YOU!!! ​

Answers

Answer:

A) They increase the rate of photosynthesis by increasing the amount of water in the leaf.

Phototropism
Stimulus = ___________ Response = __________

A light, plant leaves move towards touch
B sunlight, plant faces sun
C light, plant grows towards light source
D plant stem grows upwards, plants roots grow downward

Answers

Answer:

I wish I could help but I don't think this work is on my grade level

Which land cover type has the least area in United States? A. special-use land B. crop land C. forest-use land D. wet land E. urban area

Answers

It would be C. Because forest uses more land

What problems might be seen if glaciers and ice caps worldwide continue to melt?
A global levels of sea water might increase
B. global surface temperatures might increase
C. global levels of sea water might decrease
.
D. global levels of fresh water might decrease

Answers

Make me brainliest tho its A
C) global level of sea water might decrease!

Are there nuclear reactions going on in our bodies?

Answers

Answer:

Yes, there are nuclear reactions constantly occurring in our bodies, but there are very few of them compared to the chemical reactions, and they do not affect our bodies much. ... Chemical reactions do not change the nuclear structure of any atoms. In contrast, nuclear reactions involve the transformation of atomic nuclei.

Explanation:

Answer:

yes

Explanation:

what will happen to the concentrations of ATP,NADPH, and sugar when you add paraquat

Answers

Answer:

Increase  ATP

Decrease NADPH

Decrease Sugar

Concentrations of ATP, NADPH, and sugar decreases when we apply paraquat on the plants.

The concentrations of ATP,NADPH, and sugar decreases when you add paraquat because paraquat is a toxic chemical which blocks the activity of respiration in plants leading death of those plants. Paraquat inhibits the ATPase activity which is responsible for the production of ATP.

So due to no cellular respiration no ATP is produced. Paraquat (PQ) also inhibit photosynthesis so no glucose as well as NADPH is produced so we can conclude that concentrations of ATP, NADPH, and sugar decreases when we apply paraquat on the plants.

Learn more: https://brainly.com/question/20161402

When grey wolves were reintroduced back into Yellowstone

Answers

Answer:

1995

Explanation:

Grey wolf packs were reintroduced to Yellowstone National Park and Idaho starting in 1995.

hope it helpful

Scientists have concluded that Tiktaalik lived when deciduous trees began appearing on land, an event that occurred hundreds of millions of years ago. Which radiometric probe (Carbon-14, Iodine-129, Uranium-238) would you choose to determine a more accurate age of the Tiktaalik fossil? Explain your reasoning.


PLEASE HELP ME ILL GIVE 25 POINTS

Answers

Answer:

Carbon

Explanation:

Carbon leaves a bigger footprint when investigating fossils or skeletons scientists use carbon samples.

The Carbon-14 radiometric probe should be used to determine a more accurate age of the Tiktaalik fossil. Radiometric dating is the technique used to calculate the age of fossils.

What is radiometric dating?

Radiometric dating or radioactive dating is a technique which is used to date the materials such as rocks or carbon, in which trace amounts of radioactive impurities were selectively incorporated when they were formed in the fossil such as trees.

Radiometric dating is used to calculate the age in years for a geologic material by measuring the presence of a short-life radioactive element in the fossil. For examples, carbon-14, or a long-life radioactive element plus its decay product which is potassium-14 or argon-40.

Learn more about Deciduous trees here:

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Uncle Smiley, who is heterozygous for a yellow face, married a woman with a green face. Both of them have always wanted a large family! If they were to have 12 children, how many of the 12 children would have yellow faces? How many of the 12 children would have green faces? Create a Punnett square to to help you find your answers. Hint: Yellow face is dominant to green face

Answers

Answer:

Since Yellow is dominant over green then almost all of the children will have yellow faces. The punnet square below will show what the offspring will have but my guess is

50% will have yellow faces

50% will have both yellow and green

1% will have a green face

But since Yellow is dominant over green the 50% of both colors will mostly show a yellow dominant.

I apologize if my drawing looks messy.

Hope this is correct

A standardized taxonomic system is valuable because it helps biologists agree on methods to

A
separate organisms

B
consume organisms

C.
interbreed organisms

D.
preserve organisms answer ASAP plz ;-;

Answers

Answer:

A. separate organisms

Explanation:

Sana makatulong

summarize in your own words how plants take energy from the sun and convert it into chemical energy (sugar)

Answers

Answer:

Steps of photosynthesis:

Step 1: Energy is captured from sunlight.

Step 2: Light energy is converted to chemical energy,

which is temporarily stored in ATP and the energy

carrier molecule NADPH.

Step 3: The chemical energy stored in ATP and NADPH

powers the formation of organic compounds, using carbon

dioxide (CO2 ).

Explanation:

what is polygenetics ?​

Answers

Explanation:

is a member of a group of non epics tactic genes that interact additively to influence a phenotypic trait

Answer (three definitions, where two are biology and one is geology):

1) (biology) Of or pertaining to polygenesis; polyphyletic.

2) relating to or determined by polygenes.

If you don’t know what a polygene is: A polygene or multiple gene inheritance is a member of a group of non-epistatic genes that interact additively to influence a phenotypic trait.

3) (geology) One which is composite, or consists of two or more monogenetic ranges, each having had its own history of development.

Hope this helps! :)

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