A girl has her eyes shut and is standing inside a brightly lit room. What happens to her pupils when she opens her eyes? Why?

Answers

Answer 1

Answer:

When you open yours eyes in a brightly lighted area to a dark room (such as a cinema hall), you experience difficulty in seeing objects for a short while slowly, your vision is improved. This improvement is called dark adaptation. This change is due to (a) regeneration of the visual purple (or rhodopsin), the pigment of the rods, which was earlier broken down due to bright light, and (b) dilation of the pupil permitting more light to enter the eyes.

Answer 2

The pupil will constrict. Bright light will contract the muscles of the iris.

What is structure of an eye?

An eye is a spherical structure responsible for vision.

An eye consists of three main layers:

Outer layer: It consists of cornea and sclera. Cornea extends into a membrane like structure called conjunctiva.Middle layer: This layer contains iris, ciliary body and choroid.Inner layer: Consists of retina where an inverted image of the object is formed. The optic nerve carries the visual information to brain.

Two fluids namely aqueous humour and vitreous humour are present which maintain the shape of an eye.

The coloured part of an eye is called iris. It regulates the intensity of the light entering to the eye by controlling the diameter of a pupil (small aperture in the iris).

The lens of an eye is biconvex. It directs the light to the retina.

Therefore, eye is a crucial sensory organ.

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Related Questions

The change in the instruction caused the protein to _________.

-Be incomplete
-No longer exist
-Have the same structure

Answers

Answer:

have the same structure

Explanation:

because if protein is not good how to we get another type of structure

In one or two sentences, compare and contrast the legs of a vertebrate with the legs of an invertebrate.
plssssss no copy and pastes

Answers

Answer:

vertebrate probably has more strength and support while the invertebrate probably has more soft and stuff.

Vertebrates are have well developed and long bones in legs and hands. Whereas, invertebrates have soft short and fragile bones and nerves in legs and hands.

What are vertebrates?

Vertebrata, which means chordates with backbones, is the subphylum of animals that includes all types of animals. The majority of the Chordata, phylum, are vertebrates.

Underneath skin and muscle is where the vertebrate skeleton resides. The brain and spinal cord are enclosed by the skull and vertebral bones, while the heart and other internal organs are shielded by the ribs. The interior core of the legs is made up of long bones.

Exoskeletal material covers almost all exterior features on vertebrates, as well as a few internal ones. These structures include the body, legs, fore and hind digestive tracts, some respiratory surfaces, eyes, mouthparts, antennae, and antennae.

Invertebrates have no vertebral column and are have not developed bones or muscles inside. Insects, mollusks, cnidarians  etc. belongs to this class. Their legs have  no muscle tissues and long vertical bones.

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What animals are in Washington D.C

Answers

Answer:

240 species of birds, 29 mammals, 21 reptiles, 19 amphibians, and 78 species of fish

Explanation:

Answer:

Mammals · Bats · Beavers · Black bears, black bears multiple languages · Bobcats · Cougars, cougars multiple languages · Coyotes · Deer · Elk ...

The urinary bladder has to hold and store urine until it is released. What would you predict about the urinary bladder’s structure knowing this about its function?

Answers

Answer:

The bladder's structure is elastic/stretchy in order to expand and decrease for the amount of urine stored.

Yeah he’s right even though I didn’t answer still god bless you!!!

describe and explain experiences/connections from outside of school related to our learning goal: I can use characteristics to organize Bacteria, Archaea, and Eukaryote.

Answers

Answer:

Explanation: An experience I had outside of school related to biology is; I was at the park a long time ago, when i noticed something in the ground, it was a fossil of a bird and it was engraved inside of the concrete.

He is correct

God bless you!!!

Mitosis involves ___________. (Check all that apply.)

Group of answer choices


growth


diffusion


reproduction


development


Help please!

Answers

growth and development
all of the above, they are all correct if you understand mitosis

This is my cat but literally no one in my family knows what type of breed she is, she was always really small and finally started to actually grow about a year ago, her eyes are green also they are really pretty, I think she’s pretty young b/c she tends to have a lot of energy and do more then our old black cat, we had an older cat who looked exactly like her but was way bigger, anyone know how to be able to figure out what kind of breed she is?


(I don’t knowwhat kind of subject this would be- so ima put a random one that has to do with science, sry if it’s the wrong one!)

Answers

Browse Breeds. If you want to try to take a guess at your dog's breed yourself, try to browse some breeds to figure it out. ...

Ask Your Vet. As you probably already know, your veterinarian is a doggy expert! ...

mark as brainliest pls

Answer:

It's bread

Explanation:

BREAD CAT

compare the circulatory system of a plant and animal

plz help do not copy off anything because this is a unit test

Answers

Answer:

The circulatory system is the method of transport in plants and animals. Animals must have nutrients and oxygen reach every cell in their body. Plants must have nutrients and carbon dioxide reach every cell in their “body.” Both plants and animals must also have waste products removed from their systems.

Explanation:

You are gonna have to change the wording a little but thats ok! An y'know what? I have the same answer on one of my past test we did like a week ago!

Answer:

In plants, there is a conducting tissue that is located in the veins. Inside, there are xylem cells that conduct water and minerals upward from roots to leaves and phloem that conducts food. Plants have only water solutions flowing through the tubing. Animals can have one of two kinds of circulatory systems: open or closed. In animals, each blood vessel in the network is responsible for transporting nutrients and oxygen to cells and for removing wastes and carbon dioxide from cells.

Explanation:

Describe the function of the lungs in the respiratory system

Enter your answer in the space provided

please do not copy off anything because this is a unit test please help me 100 points

Answers

Answer:

Functions of the lungs are:

1) It is the most vital organ in the respiratory system for gaseous exchange in the body.

2)It is the organ which oxygenates the deoxygenated blood from the Pulmonary arteries.

3) The lungs’ main role is to bring in air from the atmosphere and pass oxygen into the bloodstream. From there, it circulates to the rest of the body.

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