If our pupil is just a hole how does it go small and big when your thinking of something...

Answers

Answer 1

Answer:

This is controlled by muscles in the iris which will constrict or enlarge the pupil.

Explanation:


Related Questions

Do energy levels have plants in them​

Answers

Yes energy levels do include plants
Yes plants very much have levels

Worth 10 points. Plz help.
What two things do organisms need for the process of cellular respiration?
A. oxygen, and sugar
B. Water and oxygen
C. Carbon dioxide and water
D. Carbon dioxide and oxygen
E. Sunlight and water

Answers

Answer:

c.

Explanation:

The answer to this question is C. Carbon dioxide and water

What has the structure of the DNA molecule been compared to?

A straight ladder
A staircase
A twisted ladder
An escalator

Answers

It would be C. A twisted ladder

where is plant tissue located​

Answers

Answer:

Parenchyma – These tissues are found in the soft parts of a plant such as the roots, stems, leaves, and flowers. The cells of this tissue are loosely packed and contain large intercellular spaces between them. Each cell has a vacuole at the center.

Explanation:

state the difference between the two methods.​

Answers

Answer:

They look different

Explanation: Look at them. Yes ok good

different boiling points?

‘Fractional distillation is a method for separating a liquid from a mixture of two or more liquids. For example, liquid ethanol can be separated from a mixture of ethanol and water by fractional distillation. This method works because the liquids in the mixture have different boiling points.’

Which of the following describes a community? *
a. The plants, animals, fungi, and bacteria living in an area
b. The plants, animals, fungi, bacteria, rocks, sunlight, water, and climate in an area
c. A group of brown pelicans that live in the same area and reproduce
d. When a snake and a hawk compete for the same prey item.

Answers

Answer:

b

Explanation:

Since a community is the animals living there and their environment, I would choose b.

Lactic acid fermentation occurs in muscle cells when levels are low. When builds up in muscles it causes pain and muscle fatigue. Usually, the lactic acid diffuses into the bloodstream over time and is filtered out by the and converted into glycogen and then to glucose. However, with proper training, lactic acid can transfer to the of muscle cells, where it is broken apart for its energy. HighLighter PopupUnderline Selected TextGreen Color HighlightOrange Color HighlightYellow Color HighlightBlue Color HighlightPink Color HighlightRemove Color Highlight

Answers

Answer: Oxygen, Lactic acid, liver, mitochondria

Explanation: Lactic acid fermentation occurs in muscle cells when OXYGEN levels are low. When LACTIC ACID builds up in muscles it causes pain and muscle fatigue. Usually, the lactic acid diffuses into the bloodstream over time and is filtered out by the LIVER and converted into glycogen and then to glucose. However, with proper training, lactic acid can transfer to the MITOCHONDRIA of muscle cells, where it is broken apart for its energy.

Lactic acid is produced as the byproduct of the anaerobic respiration. The correct answers are oxygen, lactic acid, liver, and mitochondria.

Lactic Acid Fermentation:

During the intense exercise, body become unable to fulfill the need of oxygen. Hence, body start producing energy anaerobic respiration and produce a by-product, lactic acid. This results in build up of the lactic acid in muscle which cause muscle fatigue.

Lactic acid fermentation occurs in muscle cells when Oxygen levels are low.When lactic acid builds up in muscles it causes pain and muscle fatigue. The lactic acid diffuses into the bloodstream over time and is filtered out by the Liver and converted into glycogen and then to glucose. With proper training, lactic acid can transfer to the Mitochondria of muscle cells, where it is broken apart for its energy.

Therefore, the cell reprocess the lactic acid to produce glucose.

To know more about Lactic Acid Fermentation, refer to the link:

https://brainly.com/question/11502989

If you put a cell in water with a higher salt concentration then the cell has,
then water will move
1 pc
A into the cell.
B it will not move in or out of the cell.
C out of the cell.
O Dit will move in and out in equal amounts.
Which image shows a cell that has a higher concentration of salutes inside
Tin

Answers

Answer:

The answer is C

Explanation:

Water will move out of the cell through the process of osmosis.It is when water molecules moves from a dilute solution to a more concentrated solution.

I hope this helps in any way :)

What are 3 parts of the modern cell theory

Answers

1.All living things are composed of cells.

2.Cells are the basic units of structure and function for living things.

3.All cells come from pre-existing cells.

Hop this helps

Can someone please help me?

Answers

Answer:

a) 1:4 (25%)

b) 1:4 (25%)

c) Carrier females have the genotype XFXf.

d) There are four possible genotypes, XFXf, XfXf, XFY, XfY

Explanation:

The mutation for hemophilia is on the X chromosome. Females have two X chromosomes and males have one.

Let's say that the mutated allele is f and the normal allele is F.

A carrier female has the genotype XFXf. A hemophilic man has one X chromosome. and since he is affected, must have the mutated allele. He must have the genotype XfY.

The punnett square below shows the cross

                   XF                     Xf

Xf              XFXf                   XfXf

Y                XFY                   XfY

a) As we saw, carrier females have the genotype XFXf. In the cross, there 1:4 chance that phenotype will occur.

b) A normal male has the genotype XFY. In the cross, there 1:4 chance that phenotype will occur.

c) Carrier females have the genotype XFXf.

d) There are four possible genotypes, XFXf, XfXf, XFY, XfY

Dissolved substances have to pass through a _________________
to get into and out of a cell.

Diffusion is ONE process that allows this to happen.
Examples of substances: ______,______,______,
________,_______

All living things rely on diffusion to live. They use it for:
Getting __________
Removing_________
Plants use of________

Answers

Answer:

1. Partially Permeable Cell Membrane

2. Water/Carbon Dioxide/Oxygen/Lipids/Bacteria

3. raw materials for respiration/waste/photosynthesis

Explanation:

Hope this helps and good luck on your studies! :)

Replacing a nitrogen base with another is an example of what type of mutation?

Answers

Answer:

The answer is c substitution

where is epithelium tissue located​

Answers

Answer:

Epithelial tissues line the outer surfaces of organs and blood vessels throughout the body, as well as the inner surfaces of cavities in many internal organs. An example is the epidermis, the outermost layer of the skin.

- Wikipedia

Answer:

Epithelial tissues are widespread throughout the body.

Explanation:

they are major tissue located inglands

ASAP Need Help Thankyou​

Answers

D?!? Let me know if you get it right

Why's it good for the strangler fig to be in a relationship that's commensalism?

Answers

Because it needs water

A solution that has 0% salt is____to a cell with 40% salt concentration

Answers

Answer:

The solution is hypotonic

Explanation:

Molecules in a solution move from highly concentrated regions to regions of low concentration in an effort to reach a state of equilibrium- where the molecules are equally distributed. This always occurs with the molecules moving down the concentration gradient.

Solutions can be:

hypertonic, or more concentrated; hypotonic- less concentratedisotonic- same concentration

At 40% salt concentration, solution A is hypertonic while the less concentrated solution at 0% salt concentration is hypotonic.

Pls help and Thx!! What is considered an object's half-life?

Answers

The rate at which a radioactive isotope decays is measured in half-life. The term half-life is defined as the time it takes for one-half of the atoms of a radioactive material to disintegrate.

A gene mutation in which one base pair in a DNA sequence is replaced with a different pair is a ______________________.

Duplication

Inversion

Substitution

Translocation

Answers

The answer is:
Subsitution

Answer:

Substitution

Explanation:

Most common

What affects the function of enzymes

Answers

Enzymes can be affected by temperature, and concentration.

is this a multiple choice question? I took biology 2 years ago so I'm not 100% positive but I'm pretty sure they help to speed up reactions

How is asexual reproduction advantageous to an organism while still putting it at a disadvantage?
A. It produces genetic variation among offspring but takes time and energy to find a second parent.
B. It is quick and only requires one parent but produces genetic variation among offspring.
C. It is quick and only requires one parent but produces genetically identical offspring.
D. It produces genetically identical offspring but takes time and energy to find a second parent​

Answers

Answer:

It produces genetically identical offspring but takes time and energy to find a second parent​

Explanation:

The answer should be It produces genetically identical offspring but takes time and energy to find a second parent​.

Hope this helps you

What does the Teacher's Pet Video: Mitosis and Meiosis give as the main reason for the production of haploid cells during meiosis?
O because the two haploid cells will fuse together to make a new genetically different diploid cell that will form the offspring
O because the sperm brings all of the father's genes to the egg allowing for the baby to have a different number of chromosomes
c. because the egg and the sperm will then be able to each form a new diploid offspring through the process of mciosis
d. because both the parents' and offspring's diploid cells will then be genetically identical to one​

Answers

Answer:

The main reason for the production of haploid cells during meiosis is because the two haploid cells will fuse together to make a new genetically different diploid cell  that will form the offspring.

Explanation:

In the context of sexual reproduction, meiosis is the process of cell division by which gametogenesis occurs. In this process, diploid cells are used to obtain haploid cells, called gametes.

The reduction of the chromosomal charge that occurs in meiosis is aimed at producing haploid cells —with half of the crosmosomes of a species— so that when the parents' gametes join, they form a diploide cell called zygote.

Zygote is the starting point for the development of a new individual, part of the offspring.

According to the TED Talk video with Richard Turere, what observation did he make about the natural world around him?
A. the lions were killing the people of his village
B. the lions were killing the cattle in his father's herd
C. the elephants were getting into his village
D. the lions were keeping up too much noise in his village​

Answers

I’m guessing the answer would be the second one!

Why is genetic diversity important?

Answers

Answer:

Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population. ... Genetic variation is advantageous to a population because it enables some individuals to adapt to the environment while maintaining the survival of the population.

Explanation:

Answer: Genetic variation is an important force in evolution as it allows natural selection to increase or decrease frequency of alleles already in the population. Genetic variation is advantageous to a population because it enables some individuals to adapt to the environment while maintaining the survival of the population

Explanation:

Why is nutrition important for health?

Answers

Answer:

To make sure you body works properly

Explanation:

If you have good nutrition you body will work like it should and you will have an great body and a long life.

Answer:

Here's some reasons:

- It can reduce the main risk of diseases and strokes.

- Improves your body's recover progress.

- Boosts energy

- Increases mental strength

- Reduces blood pressure

- Reduces chance of diabetes

- Reduces chance of heart cancer, breast cancer, rib cancer, brain cancer, and some more types of it too.

Hope this helped you out! :)



William is developing the model shown below to illustrate the process of photosynthesis. He plans to use the model to explain how

photosynthesis transforms both energy and matter.

H20

CO2

TRUJILLC

NADPH

ATP

ADP

NADP -

02

Sugars

Earth systems include the biosphere, atmosphere, and geosphere. Use the model to explain how photosynthesis acts to transfer carbon

between two Earth systems.

Answers

Answer:

Photosynthesis serves as a process of transferring carbon between the atmosphere and the biosphere by using carbon dioxide present in the atmosphere to produce sugars found in plants.

Note: The model is found in the attachment below

Explanation:

The atmosphere is the layer of gases forming an envelop around the earth. The earth's atmosphere is composed of mainly nitrogen and oxygen as well as other gases such as carbon dioxide and water vapor.

The biosphere refers to the regions of the earth's surface on which living organisms can be found. It includes the land, air and water.

Carbon dioxide is cycled between the atmosphere and the biosphere by the process of photosynthesis which is the process by which green plants manufacture their food with the aid of energy from sunlight.

From the model, in the first stage, energy of sunlight is trapped by light-dependent reactions and is used it to make ATP and NADPH. During the second stage, the light-independent reactions use ATP and NADPH reduce carbon dioxide from the atmosphere to sugars and ADP and NADP⁺.

Thus, photosynthesis serves as a process of transferring carbon between the atmosphere and the biosphere.

What is a thermocline?

Answers

Answer:

a steep temperature gradient in a body of water such as a lake, marked by a layer above and below which the water is at different temperatures.

Explanation:

Hope this helped if so please leave a rating! :)

THANKS

What is the reason for continental drift?

Answers

Answer:

Wegener suggested that perhaps the rotation of the Earth caused the continents to shift towards and apart from each other. (It doesn't.) Today, we know that the continents rest on massive slabs of rock called tectonic plates. The plates are always moving and interacting in a process called plate tectonics.

Explanation:

Imagine that y-axis of each graph describes the rate of photosynthesis. Which of the graphs represents the
effect of light intensity on the rate of photosynthesis?
a. A
b. B
c. C
d. D

Answers

Answer:

a. A describes the effect of light intensity on photosynthesis.

Explanation:

In plants and other primary producers, photosynthesis is a biological mechanism that is vital to energy production. Energy-containing carbohydrates are derived from light, water and carbon dioxide in the form of glucose molecules.

The waste product oxygen is released as a result. Photosynthesis depends on many variables, including:

carbon dioxide concentration, ambient temperature and light intensity

It is a rate-limited reaction. Since photons or particles of light provide the energy required for the reaction, high intensities of light increase the photosynthetic rate. From the graph shown, as the intensity increases steadily, so does the rate- but at too high of an intensity, it ceases to affect the rate of photosynthesis, which becomes constant or plateaus.

Beyond this point, either the supply of carbon dioxide or the temperature limits the reaction. For instance, at high intensities tissues may even be damaged by high temperatures or heat.

Will mark brainliest!



Please look at ALL the questions above !

Please make sure all the answers are correct someone tried to help me but still got it wrong ...

Answers

Answer:

1. C

2. A

3. D

4. B

Explanation:

Hope this helps

:)

Q1:C

Q2:A

Q3:D

Q4:B

Hope this helps:)

Passive transport moves molecules_____their concentration gradient (its not move)

Answers

Answer:

I think it's: down

Explanation:

Other Questions
Hi, I could really use your help. The question is Which of the products would you anticipate being formed in the least molar quantity? That is, which of the products (1, 2, or 3) is the minor product? Explain your choice. HINT: Consider the intermediates formed. Did Shi Huangdi improve China? Support with 3 pieces of evidence The total weight of a car with passengers is 30,000N. The area of contact of each of the four tyres with the ground is 0.025m2. Determine the minimum car tyre pressure HELP ME please help me :,(algebrawhat are the roots, and y intercept of g (x)?f (x)=(x-2)(x+3)(x-4)(x+1)g (x)= -f (x+3) (10pts) Given: O AB , OF is bisector of COB, mFOB=70.a(5pts) Find: mAOF PLEASE HELP here are the first three terms of a different sequence 1 2 4 write down two numbers that cold be the 4th and 5th terms of this sequence give the rule you have used to get your numbers Which values from the given replacement set make up the solution set of the inequality? 2b6; A) { 3, 4} B) {2, 3, 4} C) {1, 2, } D) {1, 2, 3} Why do you think people believe the legend about Betsy Ross and the first flag?PLS HELP ME PLS Read this passage from "Notes of a Native Son, in which the narrator reflectson his fatherIn my mind's eye I could see him, sitting at the window,locked up in his terrors; hating and fearing every living soulincluding his children who had betrayed him, too, byreaching toward the world which had despised him.In what way does this scene show one of the central ideas of JamasBaldwin's essay?A. The scene shows how betrayal destroys a person so utterly, hecannot recover.B. The scene shows how people hold on to hatred and let itovershadow everythingC. The scene shows how fear, not anger and jealousy, is the leadingcause of hatred,OD. The scene shows that the world has little concern for people'sbeliefs. Select the correct response:_____________ de las maestra es grandea. El escritoriob. La pizarra c. El historiad. La almuerzo Fill in the blank with the correct form of "ser" or "estar". Las chicas ____ en la playa.Will name brainliest What types of people do you believe keep a diary or journal? 5 lines on education for std 6 Erica opens a bank account to save for college. She makes an intial deposit of 3,000!Into an account that pays 3% interest compounded continuously the formula below is the appropriate model for the situation use it to determine how long it will take her to reach a balance of 8,400 I need help on this, I don't get this Construct an explanation based on evidence for how the structure of DNA determines the structure of proteins. Be sure to describe the steps in the process of protein synthesis. Use information from the lesson to support your response. PLEASE HELP ASAP I FORGOT HOW TO DO THIS! Which sentence contains a word that is used correctly?The billionaire claimed that his poverty was the result of hard work.Squirrels collected data on the acorns produced by each oak tree in our yard.The neighborhood bully and I have loathed each other since we were young.The gardeners planted color-coordinated flowers to turn the garden into a ghastly sight Apna Desh kab Azad hua tha angrejo ki gulami se Brainliest 5 stars Thanks!