The structure labeled "A" open and close the sites where the gases, carbon dioxide and oxygen, are exchanged during photosynthesis. What is the structure labeled A?

Answers

Answer 1

The structure A in the question seems missing but the given answer is based on the description given in the question.

Answer:

The gaseous exchange of carbon dioxide(CO2) and oxygen(O2) occurs through small, regulated openings called stomata during photosynthesis.

Therefore the Structure A is Stomata


Related Questions

Giving Branliest
True of False-- A child or offspring can inherit a trait that is not outwardly apparent in either parent. * IM sorry I keep asking these question

Answers

Answer:

The answer to the question provided is True.

Answer:

Yes

Explanation:

because you can pick up different traits form different relatives from either side.

A scientist is extracting the DNA of a multicellular organism. He finds that 20% of the strands bases are Thymine. Based on Chargaff's rule, what percentage of the
strands bases would be Adenine?

A. 20%
B. 70%
C. 40%
D. 60%

Answers

Answer:

A. 20%

Explanation:

A DNA molecule consists of four nucleotides viz: Adenine (A), Thymine (T), Guanine (G), and Cytosine (C). According to Chargaff in his complementary base pairing rule, these nucleotides pair with one another in such a way that A bonds to T, while G bonds to C.

Based on Chargaff's rule, the amount of Adenine in the DNA is equal to the amount of Thymine while the amount of Guanine is equal to that of Cytosine i.e. A=T, G=C.

A + T + G + C = 100%

Hence, in this question, a scientist finds that 20% of the strands bases are Thymine. This means that the amount of Thymine in that DNA will also be 20%. S

Since A=T = 20% in accordance to Chargaff rule.

ANSWER QUICK PLS I WILL GIVE BRAINLYIST

At what point should health officials have started to control the spread of Ebola in West Africa? It needs to be an essay.

Answers

I think health officials should have started to control when more people started getting sick . When people starting dying and causing a outbreak it should of went under a health check . The people in west Africa should have stayed home and quarantined there selves and waited until things got better .

How does water cause frost wedging?

A
Water attracts lightning, which breaks apart huge boulders into many smaller pieces.

B
Water carries sediment to large rocks, causing them to rub against each other.

C
Water freezes and thaws inside rock cracks, causing them to widen and then split.

D
Water slowly wears down a rock’s sharp edges, leaving behind a smooth surface.

Answers

Answer:

C. Water freezes and thaws inside rock cracks, causing them to widen and then split.

Explanation:

When water gets in the crack at the bottom and freezes, frost wedging occurs.

Frost wedging happens when water gets in crack, freezes, and expands. This process breaks rocks apart. When this process is repeated, cracks in rocks get bigger and bigger (see diagram below) and may fracture, or break, the rock.

The answer is c and also it tell me it has to have 20 characters so I’m typing this

collection of monkey​

Answers

Answer:

A group of monkeys may be commonly referred to as a tribe or a troop.

i think that correct?

Explanation:

Which of the following best describes a change in the sequence of DNA of an organism?
A mutation
B natural selection
C gender
D DNA​

Answers

DNA is a dynamic and adaptable molecule. As such, the nucleotide sequences found within it are subject to change as the result of a phenomenon called mutation. Depending on how a particular mutation modifies an organism's genetic makeup, it can prove harmless, helpful, or even hurtful.

Mutation (A)

C Protista itc
5. Which of the following is a heterotrophic eukaryote associated with the decomposition of dead organisms
a Protist
b. Herbivore
c Bacterium
I
d Fungus
Help

Answers

it would be d since the other three are unicellular

What macromolecules provide instruction for growth

Answers

Correct answer :

D. Nucleic acids

What's the term that describes all the chemical reactions taking place in an orgasm

Answers

Answer:

Metabolism

Explanation:

What might be some reasons why cellular communication is necessary?

Answers

Answer:

in single-celled organism,signaling allows population of cells to coordinate with one another and work like a team to accomplish tasks no single cell could carry out on its own. the study of cell signaling touches multiple biological disciplines 5 years developmental biology , neurontology, and endocrinology.

* explanation* : hope this helped you

how are land and sea breezes important to human population?

Answers

Answer:

Explanation:

Land is important as it provides a suitable habitat for humans as with high population a higher land mass is needed in order to provide satisfactory living condition likewise if lower population less land mass is needed while sea breeze is needed to it ability to stabilize thermal temperature in which is needed to keep a population physiology content

Which letters are broken down to produce energy for cells? There’s two

Answers

Answer:

C and D

Explanation:

Cellular respiration, which is the process whereby energy in form of ATP is synthesized, occurs in the MITOCHONDRIA. The products of cellular respiration (CO2 and H2O) are used as reactants by plants to produce glucose and oxygen in their CHLOROPLASTS in a process called PHOTOSYNTHESIS. The glucose and oxygen are broken down in the MITOCHONDRIA to yield energy by cells.

In this image, letters C and D represents glucose and oxygen, which are products of photosynthesis in the chloroplast. Glucose and oxygen represented by C and D are broken down to produce energy for cells in the mitochondria

Use the diagram below to answer the following question.
Which of the following statements accurately describes the relative age of the fossils in these rock layers?
A) The yellow shell fossils are from 300 million years ago
B)The brown trilobite fossils are from 500 million years ago
C)The brown trilobite fossils are older than the yellow shell fossils
D)The yellow shell fossils are older than the brown trilobite fossils

Answers

Answer:

C) The brown trilobite fossils are older than the yellow shell fossils

Explanation:

An organism that feeds on dead, decomposing matter is called what? BRAINLIEST FOR THE CORRECT ANSWER!!

Answers

it would be decomposed

Answer:

Detritivores

Explanation: Just took the test look it up if you have to, that's all I did.

1. How much force accelerate a bicycle and rider with mass 60 kg at 1.5 m/s?

Answers

Answer:

Force, F = 90 N

Explanation:

Given that,

Mass of the bicycle and rider, m = 60 kg

Acceleration of the bicycle and rider, a = 1.5 m/s²

We need to find the force acting on the bicycle and rider to accelerate. Let it is F. Its force is given by :

F = ma

F = 60 kg × 1.5 m/s²

F = 90 N

So, the force acting on the bicycle and rider is 90 N.


A student finds a beaker containing a substance in the laboratory. The student filters the contents of the beaker and notices that a solid is left on the filter paper.
What can the student conclude about the type of matter of the original material?

Answers

Answer:

These are my answer choices so I guess it's an mixture, it's a mixture of filtration .. so its a mixture

Explanation:

(1) The original material was a mixture.

(2)The original material was a compound.

(3)The original material was either an element or a compound.

(4)The original material was either a mixture or a compound.

A beaker containing a substance is in the laboratory. Upon filtering, a solid is left on the filter paper. We can conclude that the original material was a mixture.

Filtering is a method for the separation of heterogeneous mixtures. A filter paper is placed in a funnel and the mixture is poured over it. The liquid passes the filter while the solid is retained. Since this was the situation of the student, we can conclude that the original material was a mixture. After the filtering, the student will have 2 homogeneous systems.

A beaker containing a substance is in the laboratory. Upon filtering, a solid is left on the filter paper. We can conclude that the original material was a mixture.

You can learn more about filtering here: https://brainly.com/question/12423738

Populations of organisms that reproduce asexually tend to show less variation from one individual to another. Why might this be? Make a claim and use your scientific reasoning skills to support your claim.

Answers

The population of the organisms that are from single-parent has similar as they have genetic variations.

Why does reproduction from single parent has no variation. ?

Due to the fact that the single parent does not have any genetic differentiation to pass on to their offspring. This the lack of genes that lead to mutation from the DNA is not available hence the organism is born with less variation. This is a clone or a true copy.

Find out more information about the organisms that reproduce.

brainly.com/question/14033876.

A cell’s nucleus will divide during mitosis. Whaat process must happened before it can divide?

Answers

Prokaryotic cells, which include bacteria, undergo a type of cell division known as binary fission. This process involves replication of the cell's chromosomes, segregation of the copied DNA, and splitting of the parent cell's cytoplasm. The outcome of binary fission is two new cells that are identical to the original cell.

How do humans (and other animals) rely on the products of photosynthesis?

A. They breathe in oxygen gas for cellular respiration.

B. They use water to regulate their body temperature.

C. They use carbon dioxide for cellular respiration.

D. They use ATP for energy.

Answers

Answer: A. They breath in oxygen gas for cellular respiration.

Explanation:

HELP PLEASEE
What is the difference in climates east and west of the Cascade Mountains in the Pacific Northwest?
There is more cloud cover and more rain in the east of the Cascade Mountains,
O There are colder winters in the west but milder winters in the east of the Cascade Mountains,
O There is more sunshine and less rain in the west of the Cascade Mountains
There are milder winters in the west but colder winters in the east of the Cascade Mountains,

Answers

Answer:

There are milder winters in the west and colder winters in the east

Answer:

There are milder winters in the west but colder winters in the east of the Cascade Mountains. or d/4th one

Explanation:

made it easier to read other one

Calculate the volume in mL of a stock solution of 100% ethanol, required to prepare 2 L of a 70% solution of ethanol in dH2O

Answers

Answer:

For example, to make 70% ethanol from 95% ethanol, take 70 mL of 95% ethanol and add enough water to bring the volume to 95 mL. You will then have 95 mL of 70% ethanol. This works for any dilution and all that is required is a large enough graduated cylinder.

When using liquid reagents, the percent concentration is based upon volume per volume, i.e. #ml/100ml. Example 2: If one wished to make a 70% ethanol solution, 70 ml of 100% ethanol would be dissolved in 30 ml of water (or the equivalent for whatever volume was needed).

Which of the following combinations is always true of the nucleotide composition of a sample of DNA?

Answers

Answer:

I'm dead

Explanation:

Bruh you literally go to my school. I'm dying over this.

The combination which is always true of the nucleotide composition of a sample of DNA is:  [tex]A + C = G + T[/tex]

Deoxyribonucleotides is the basic unit of a deoxyribonucleic acid (DNA).

Basically, it comprises a nitrogenous base and phosphate group that are commonly known as deoxyribose sugar.

A nucleotide refer to a subunit of deoxyribonucleic acid (DNA) or ribonucleic acid (RNA) that consists of a nitrogenous base.

Hence, the nitrogenous base or nucleotide composition of a deoxyribonucleic acid (DNA) includes the following:

Adenine (A).Guanine (G).Cytosine (C).Thymine (T).

In conclusion, the combination which is always true of the nitrogenous base or nucleotide composition of a sample of DNA is:

               [tex]Adenine (A) + Cytosine (C) = Guanine (G) + Thymine (T)[/tex]

Read more: https://brainly.com/question/19755749

Fill in the blank

The length of __________ of dark period controls _________.

Answers

The length of period of dark period controls flowering.

does any one know whats wrong with my foot it has been in constant pain since yesterday now i dont know if it is a sprain or what plz help im in constant pain now i can hardly walk it is the long near the big toe right in the center of the long bone conecting to my ankle plz i need to know if i need to go to doctor.

Answers

Answer:

Yes. You need to go to the doctor.

Explanation:

Your foot could be doing this because the bone itself could be bruised or else it somehow got injured or is in some other type of pain.  


Assume that you have three one-gallon containers filled with sand, silt, and clay, respectively.
Which of the filled containers will hold the most water?

Answers

I’m gonna go with silt.

do you like this image i found on instagram???

Answers

Answer:

oh absolutely. he is the best boy. also yummy. i would not eat him tho.

Answer:

drop ur id ill add u though

Explanation:

B. What is the largest cell called?
This is the largest cell in the human body. In
contrast, the sperm cell is the smallest cell in
the human body.
HELP ASAP!!!

Answers

Answer: the largest cell in the human body is the ovum



Step by step explanation:

The unique shape that a mineral grows into is called its…

Answers

Answer:

Crystal form refers to the geometric shape of mineral crystals. Crystal form is caused by the symmetrical, three-dimensional arrangement of atoms inside the mineral.

Explanation:

What dose the numbers on the map mean

Answers

Answer:

how far you need to go and the coordinate 55 south or something  

Explanation:  55 south or something  

What is Elizabeth likely to observe about the investigation of cell transportation

Answers

the movement of substances across the cell membrane either into or out of the cell
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