BIOLOGY HIGH SCHOOL

A boy who has hemophilia inherited the disorder from his ____________________a. mother
b. father

Answers

Answer 1
Answer: A boy who has hemophilia inherited the disorder from his, a. mother

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Which mutation would be most beneficial to an elephant and its descendents?A. a mutation of the hemoglobin allowing better oxygen-carrying capacity B. a mutation of the tail fur so it becomes course and thick C. a mutation of the skin color resulting in an albino (white) elephant D. a mutation of the tusk size and length resulting in smaller and shorter tusks
Which animal has tracheae but no lungs for respiration? A. cardinal B. grasshopper C. toad D. tuna
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Bacteria that use sunlight as an energy source are consideredO A) photoautotrophsO B) ertrophsO C) aprobesO D) chemoautotrophs

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A. photoautotrophs, light is made up of photons. Anything that has to do with sunlight will contain the word photo
Photoautotrophs is the correct answer. Hope it helped you

Which part of the eye is a muscle that regulates the size of the pupil

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The Iris is what regulates the amount of light within your pupil. Depending on the quantity consumed, it will either expand or shrink. 

Which events take place in the light-dependent reactions of photosynthesis?A.Light energy is converted sugars; sugars are broken down for energy.
B.Light energy is captured by plants; light energy is used to make sugar.
C.Light energy is converted to chemical energy; chemical energy is used to make sugar.
D.Light energy is captured by plants; light energy is converted to chemical energy.

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Option D. Light energy is captured by plants; light energy is converted to chemical energy

Answer:option D

Explanation:I took the test

Pathogens can be transmitted through contact with surfaces like doorknobs and countertops.a. True
b. False

Answers

The answer is a. True.

Some pathogens can be transmitted through direct contact with infected person, and some pathogens can be spread through contact with surfaces like doorknobs and countertops. For example, an infected person can touch these surfaces and leave behind pathogens. When an uninfected person touches the surfaces and then touches its skin, the pathogens are transmitted to that person. Staphylococci are the commonly transmitted this way.

Answer:

True

Explanation:

A man goes swimming in a pond. As he swims, which reaction provides energy to power his muscles?ATP regenerates from ADP using energy in glucose.
The ADP molecule adds a phosphate group and produces ATP.
ATP loses one phosphate group and converts to ADP.
NextReset

Answers

The answer is ATP loses one phosphate group and converts to ADP.

ATP stores potential energy in the form of chemical bond. By breaking this bond and removing one phosphate group from ATP, which is then converted to ADP, great amount of energy is released and it is ready to be used.

A student was visiting a friend at her home. Her friend owned two cats. After playing with the cats fora while, the student began to sneeze. Her nose began to run and her eyes became red, watery, and
itchy. It also became hard for her to breathe. A few minutes after leaving her friend’s home, the
symptoms disappeared.
Provide a biological explanation for the symptoms the girl developed at her friend’s house. In your
response, be sure to:
• state one reason why her symptoms are not likely due to an infectious agent

Answers

Answer: This girl is allergic to cat´s hair.

Explanation:

The substance that provokes allergy to cats is a protein produced in the sebaceous glands and that can be found in the cats´ hair. It can be found in clothes, walls, beds, among other places. As it can also be suspended in air, a person can easily breathe it.  In a house with cats, these proteins are present in important amounts.

An allergic reaction is an abnormal response of the immunity system to a substance considered strange to the body, in this case, the protein or the cat´s hair.  These strange substances are called allergens.

The allergen gets in contact with the body for the first time in a sensibilization face. The immunity system considers that this is a strange dangerous substance for the body. In this first stage, the subject submitted to the presence of the allergen does not show any symptoms. But in a second contact, the organism reacts with allergic reactions.

There might appear symptoms in ayes and nose as irritations, stinging, cough, skin´s eruptions and difficulty to breath.

beacuse she must have a cat hair near her nose and it ismaking her sneeze
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A scientist is comparing the outer layer of an onion cell to the outer layer of a human skin cell. What is unique about the outer layer of the onion cell compared to the skin cell?
How did Jackie Robinson’s success in Major League Baseball encouraged most white Americans? A) change their views about minorities. B) continue harassing minority players. C) pressure Congress to integrate organized sports. D) pressure for more Negro league baseball teams.