The size of pupils changes when moving from dim to very bright light. Explain how this change occurs?

Answers

Answer 1

Answer:

In dim light, your pupil expands to allow more light to enter your eye. In bright light, it contracts. Your pupil can range in diameter from 1/16 inch (1.5 mm) to more than 1/3 inch (8 mm). Light detected by the retina of your eye is converted to nerve impulses that travel down the optic nerve.

Explanation:


Related Questions

For every action or force
in nature, there is an equal
and opposite reaction.

Answers

Answer:

Newton's Third Law of Motion

Explanation:

Newton's third law of motion states that any object that has a force applied to will react in the opposite direction

Hope It Helps you!!

Models are useful because

Answers

Answer:

because they are copies of actual object or actions.

which landform can be created by wind

Answers

Answer:

sand dunes

Explanation:

the wind can gradually displace sand on top of one another and create piles of sand that build to create sand dunes

Answer:

weathering of rocks, action of wind and water.

hope it helps

Elizabeth has always believed that people’s thoughts can help heal them. She wants to help people use positive thinking to positively affect their illnesses. What type of psychology would be MOST appropriate for Elizabeth to study? A. human factors psychology B. industrial psychology C. health psychology D. sports psychology

Answers

Answer:

health psychology

hope it is helpful to you

Macroscopic urinalysis collects data on all EXCEPT which of the following?
A. turbidity
B. color
C. pH
D. odor

Answers

Answer:

The correct answer is - pH.

Explanation:

Macroscopic urinalysis is the evaluation of the physical appearance of the urine. It evaluates the amount, color, odor and clarity, and other physical appearances or characteristics.

It also checks if there are any clotting, or sediments are found in the sample. It does not include the pH of the urine in the microscopic urinalysis. It is recommended to check underlying medical conditions.

Help with b please!!

Answers

Answer:

there form

Explanation:

one shows a string appearance when the other is like a germ cell

Modern classification systems are based on structural similarities, fossil record and

Answers

- modern classification is based on figuring out evolutionary relationships using evidence from living species, the fossil record, and molecular data. - the evolutionary history for a group of species. ... - each species in a clade has some traits that have changed from its ancestors over evolutionary time.

Hope This Helps! can i get brainliest lol

The question is what 2 things are correct about the neuron when no signal is being transmitted

Answers

Answer:

A and C.

Explanation:

They are similar to the question and makes sense

All of these are Cardiovascular disease EXCEPT
Heart Attack
Hypertension
Diabetes
Pulmonary Heart Disease​

Answers

Answer:

Diabetes

Explanation:

Diabetes is a metabolic disease. :)

Hello, I need to know what is at least one reason that their is Global Warming. Whats causing it?

Answers

Answer:

Increased heat, drought and insect outbreaks, all linked to climate change, have increased wildfires.

Explanation:

Hope this helps!

What is the most significant challenge for organisms that live in estuaries?
O A. Changing nutrient levels
O B. Changing water temperatures
O C. Changing water depth
O D. Changing water salinity
SUBMIT
(FOR TEST HELPPPP N HURRYYYY PLEASE!!!)

Answers

Answer:

D

Explanation:

sorry replied late buh it's better to know for the future l guess

Mitosis makes.....
A. cell phones

B. identical body cells

C. sperm and egg cells

Answers

B. identical body cells

hope it is helpful to you

Answer:

B. identical body cells

Explanation:

Mitosis produces new cells, and replaces cells that are old, lost or damaged. In mitosis a cell divides to form two identical daughter cells. ... Mitosis separates these chromatids, so that each new cell has a copy of every chromosome.

assume that cody used a weak magnet and the flake of cereal was not attracted to it what conclusion might he have drawn?​

Answers

Answer:   he might have concluded that the flake of cereal was not magnetic

Explanation:

Explain the advantage of an increase in the number of mitochondria in slow twitch fibres. Include at least 2 points in your response

Answers

Answer:

To produce more ATP molecules.

Explanation:

The advantage of an increase in the number of mitochondria in slow twitch fibers is to provide more ATP is provided to the muscles. These large number of mitochondria is responsible for the production of large amount of ATP which is a fuel that is used by the muscles of the boy in order to continue working. There is high burden on the slow twitch fibres in order to continue its movement, more mitochondria is needed.

Which statement best describes Earth's human carrying capacity?

A: It is a fixed number that we will soon exceed.

B: It is increasing due to improved technology and medicine.

C: It is decreasing due to increasing population.

D: It is decreasing due to decreasing death rates.

Answers

B: it is increasing due to improved technology and medicine

The statement that best describes Earth's human carrying capacity that it is increasing due to improved technology and medicine. The correct option is B.

What is carrying capacity?

Carrying capacity is the amount of persons the individual may experience over a lengthy amount of time and density affects the overall population.

Food, habitat, moisture as well as other necessities found in the environment determine carrying capacity.

Carrying capacity is defined as the average population size of a species in a given habitat.

Environmental factors such as adequate food, shelter, water, and mates limit the species population size. If these needs are not met, the population will decrease until the resource rebounds.

The best description of Earth's human carrying capacity is that it is increasing as a result of improved technology and medicine.

Carrying capacity is defined as the maximum number of individuals of a population that the environment can support.

Thus, the correct option is B.

For more details regarding carrying capacity, visit:

https://brainly.com/question/2375972

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Which of the following describes the role of nitrogen-fixing bacteria in the nitrogen cycle?
Nitrogen-fixing bacteria converts

A) nitrogen gas into ammonia
B) nitrates into nitrogen gas
C) ammonia into proteins
D) proteins into nitrates

Answers

Answer:

nitrogen gas into ammonia

How does bacteria cause disease?

Answers

Answer:

Bacteria cause disease by secreting or excreting toxins (as in botulism), by producing toxins internally, which are released when the bacteria disintegrate (as in typhoid), or by inducing sensitivity to their antigenic properties (as in tuberculosis).

btw :

stay safe! :3

Because conservation means using fewer natural resources and reducing wastes, it helps
a.
slow overpopulation and grow food.
b.
prevent habitat destruction and reduce pollution.
c.
prevent biodiversity and destroy species.
d.
stop exotic species and create habitats.


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

a

Explanation:

just did it

Answer:

the answer should be "B"

Anthropologist: In an experiment, two groups of undergraduates were taught how to create one of the types of stone tools that the Neanderthals made in prehistoric times. One group was taught using both demonstrations and elaborate verbal explanations, whereas the other group learned by silent example alone. The two groups showed a significant difference neither in the speed with which they acquired the toolmaking skills nor in the level of proficiency they reached. This shows that Neanderthals could just as well have created their sophisticated tools even if they had no language
Which one of the following, if true, most weakens the anthropologist's argument?
(A) Apart from the sophistication of their stone tools, there is a great deal of evidence suggesting that Neanderthals possessed some form of language.
(B) The students who were taught with verbal explanations were allowed to discuss the toolmaking techniques among themselves, whereas the students who learned by silent example were not.
(C) The tools that the undergraduates were taught to make were much simpler and easier to make than most types of tools created by Neanderthals.
(D) The instructor who taught the group of students who learned by silent example alone was much less proficient at making the stone tools than was the instructor who taught the other group of students.
(E) The tools created by Neanderthals were much less sophisticated than the tools created by anatomically modem humans who almost certainly possessed language and lived at the same time as the Neanderthals.

Answers

Answer:

A

Explanation:

The point of this arguement is that with or without speaking they were able to make the same sophisticated and complex tools, if it is true that both had a language that would mean the silent people would have no point and that both types of humans had the same initial factors.

If an average cell in an organism lives for 40 hours, how much time would it spend in each of the phases?

Answers

Answer:

A cell spends most of its time in (M phase) or metaphase, this is when the cell divides. The Ameba sisters videos can help you.

Explanation:

What rock and type of rock was found at the triangle shaped landform on Mars?

Answers

Answer:

heeya I'm jessyour answer is here

the triangle shape solid rock that form over time is called an alluvial fan.

Explanation:

hope it may help you oopa/cissy whatever hahaha

Which of the following characteristics of life apply to bacteria?
A)They evolve
B)They reproduce
C)They use energy
D)All of the above

Answers

Answer:

All of them above

hope it helps

Answer:

It should be D

All of the above

John is a 34-year-old homosexual man diagnosed with HIV 2 years ago. He has come to your office for a follow-up appointment and has several concerns he would like addressed. Before his current appointment, you requested John have blood drawn to assess how the current regimen of medications has been working. What factors are you checking? Select all that apply. HIV viral load HIV antibody levels Antibodies for CD4 cells CD4 number CD4:CD8 ratio

Answers

Answer:

The correct answer is -

HIV viral load

HIV antibody levels

CD4 number

CD4:CD8 ratio

Explanation:

The doctor wants to check the current condition of HIV and its effects on the body of John and how are the medicines are helping. So he must be checking the viral load which means how much virus present in the blood. The level of antibodies gives the idea of antibodies produced by the body in response to infection with HIV.

The levels of CD4 cells are assessed as they are affected by the HIV virus along with CD8 cells. Antibodies are not produced against CD4 cells. Antibodies are generally for diagnosis only.

how does the mitochondria lysosomes and golgi apparatus work together

Answers

Answer:

The mitochondria segregate the Golgi from lateral regions of the plasma membrane, the nucleus, and the cytoplasm. The mitochondria and the golgi structures from very close contacts, and these contacts remain stable over time.

Onion root tips are often used to study mitosis because they grow very rapidly, which means that many cells are dividing. The very tip of the onion root ends in a structure called the root cap. The other end of the root attaches to the onion. A scientist is interested in determining whether an onion root tip grows from the base of the root or from the tip near the root cap. She counts the number of cells that are in one of the phases of mitosis at different distances from the root cap. What is the dependent variable in her experiment

Answers

Answer:

- Dependent variable: number of cells that are in one of the phases of mitosis

Explanation:

In an experiment, the independent variable is the variable that is not changed by the other variables that are being measured during the experiment (in this case, the independent variable is represented by the distances from the root cap). On the other hand, the dependent variable is the variable that is being measured/tested during the experimental procedure and, therefore, is 'dependent' on the independent variable. In consequence, in an experiment, the dependent variable is expected to change as a result of the manipulation of the independent variable.

Which of the following processes transfers carbon directly from sea water to sea plants

Answers

I don’t see the “following” that ur talking abt but it is diffusion

this one alsoo help:/

Answers

Answer:

Explanation:    

  P .         P

p | Pp .    Pp

p | Pp .    Pp

shape size and any structures at the lowest magnification and record what you see under each magnification identify any cell structuresyou see​

Answers

Hello. Unfortunately your question is incomplete, which makes it impossible for it to be answered. However, through the context, we can see that your question is asking you to describe the cellular structures that you can see through a microscope.

To answer this question, you will need to look at biological material under a microscope to see what cells this material has and the structures it has. To do this, you will need to determine what material you will be using. This material can be a leaf, flower, a piece of fruit, or any other material that contains cells. After choosing the material, you need to search for a protocol, a tutorial, that shows how this material can be prepared so that the cells can be visualized through a microscope. This protocol can be found on the internet and in articles. You must follow the entire protocol to the letter, to be able to identify the cellular structures.

Which of the following processes takes place in the ribosomes of a cell?
O A. Transcription only
O B. Translation only
O C. Transcription and translation
O D. Replication only

Answers

Answer:

B.Translatiin only

Answer:

Option B Translation only

Explanation:

Please Mark me brainlist

Domain is the least inclusive group of all of the categories.
A. True

B. False

Answers

Answer:

B. False

Explanation:

Within this hierarchy, living things are organized from the largest, most-inclusive group (domains) down to the smallest, least-inclusive group (called species). Domain: Domains group organisms by fundamental characteristics like cell structure and chemistry. The three domains are Bacteria, Archaea, and Eukarya.

Answer:

B. False

Explanation:

Domain is not the least inclusive group of all of the categories. The three domains are Bacteria, Archaea, and Eukarya.

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So far I have 2 paragraphs I need 3 more ideas on this topic. Please and thank you! For A = R + PRT/100 make P the subject. 1. Which events below are dependent?A. rolling a 6 on a die three times in a rowB. tossing a coin twice and it lands heads onceC. winning two consecutive games of bingoD. randomly choosing a class president and vice-president A professional quarterback throws a 0.40 kg football. what is the force of weight? If a perfectly competitive firm raises its price, the quantity demanded of its product ____________. a. diminishes temporarily in the short run b. falls to zero c. stays the same d. falls below marginal cost Which function has a greater Y intercept Find the area of a regularpolygon with 5 sides that has aside length of 6 inches and anapothem of 9 inches. Class 5 Garden Party17 July 3.30pmBecause of bad weather, tomorrows party will now be in the School Hall, Please give party food and drink to Mrs Bloom by 11am. What is the three-body problem? Explain at a level so an 8th grader could understand Once upon a time, a mother duckling sat on her eggs with great impatience. How long would it be before they hatched? Finally, one summer day, the mother duckling watched as the eggs cracked, and her cute, yellow ducklings waddled into the world. She was filled with joy until she noticed that one egg, which was larger than all of the others, remained. After many hours, the egg cracked. A large, gray duckling emerged. The mother duck was horrified at the duckling's appearance. The mother duck's only comfort was that the ugly duckling could swim and dive under the water.As the ugly duckling grew, many animals in the pond criticized him. His feathers were too dark, his neck was too long, and his body was too big. His fellow ducklings refused to recognize that underneath the feathers, the ugly duckling was kind, good, and gentle. The ugly duckling shed many tears because none of the other animals would play with him.Read this excerpt from the fairy tale The Princess and the Pea.One evening, there was a terrible storm. The wind howled, thunder shook the stone walls, and lightning filled the dark night sky. Through the pelting of the rain, there came a knock at the door. When the king opened the door, he saw a bedraggled girl, soaked to the skin and covered in mud. He ushered her into the castle so that she could warm herself by the fire."Why is a young servant girl like you wandering about on such a ferocious night?" queried the king.The disheveled maiden looked at the king in disbelief. "I am a princess, come to see the prince," she explained, all the while shivering.The king summoned his wife, the queen, for advice. The queen looked at the hideous creature in disbelief, thinking that no princess would ever allow herself to be found in such a state.How do the authors illustrate the theme that people should not be judged based on their appearances? Both authors show that the main characters are not afraid of getting wet and dirty in order to live active lives. Both authors show the main characters being labeled in a negative manner based on their appearances. Both authors showed the main characters exercising patience with other people. Both authors showed the main characters wanting to make friends with others. Given the similar triangles at the left, write a similarity statement.HELP IS NEEDED!!!!! PLEASE HELP ME ASAPPP!!! What is a superhero name for a female, with the pwer of elemental manipulation and the power of healing? Any suggestions? Btw if you don't have any suggestions, don't response to this question. The best answer will get a brainly! Which group contains numbers that all round most closely to 0? 1/2,2/7,9/10 3/4,5/6,7/9 3/5 , 2/4,4/7 1/5 ,2/9 , 0/4 The hypotenuse of a right triangle is 13 ft long. The longer leg is 7 ft longer than the shorter leg. Find the side lengths of the triangle. Use the graph that shows the solution tof(x) = g(x).f(x) = 1+2x/x=g(x) = 2+xWhat is the solution to f(x) = g(x)?Select each correct answer. b hjbfjebgrjkgnerjkgnejrkgnkj vmvhgvgcgfx.