Human Anatomy and Physiology Answers

What is the main difference between a virus and a bacteria?

A student in a brightly lit room covered both of her eyes with her left hand while
holding a mirror in the other hand. The student closed her eyes. She counted
slowly to 60. Then she quickly removed her hand from her eyes, opened them and
looked in the mirror. Make drawings of what her iris and pupil would look like, as
they appeared when the eye was first uncovered and about one minute later. Explain how the changes shown between your drawings occurred
and how these changes help the functioning of the eye.

Which of the following hormones would target the kidneys?
A.)TSH
B.) HSH

Why does a houseplant growing on a windowsill tend to grow towards the window?
A. This growth allows the plant to obtain moisture from the air outside
B. This growth gives leaves maximum exposure for photosynthesis
C. This growth allows the plant to obtain heat from the sun
D. This growth gives leaves maximum exposure for respiration

The increase in greenhouse gases in the atmosphere is most similar to which of the following phenomena?
A. Putting an extra blanket over yourself when you go to bed
B. Aiming a fan to blow warm air from one part of the room to another
C. Opening the vent in a greenhouse for increased ventilation on a hot day
D. Creating a fire by rubbing two sticks together

The US represents less then 5% of the population. But is responsible for ___ of the worlds carbon dioxide emissions resulting from burning fossil fuels.
A. 25%
B. Less then 1%
C. 10%
D. Over 50%

Cutting and burning forests in the tropics releases around ___ of the carbon dioxide added to the atmosphere each year.
A. Only 1% or less
B. 50% or more
C. More then 1% but less then 10%
D. 25%

Which type of plant would be expected to suffer the most and the earliest during a drought?
A. Aloe
B. Corn
C. Dandelion
D. Crabgrass

Which of the following foods is actually a unique set of modified leaves?
A. Onion
B. Sweet potato
C. Oat grain
D. White potato

Estrogen and testosterone are both produced in the male body. Unlike in the female body, breast tissue in a normally developing male does not become enlarged in response to normal estrogen levels. Which statement explains why? A. When bound to estrogen, male estrogen receptors in breast cells do not signal the genes responsible for bigger breast B. Male estrogen receptors bond only to testosterone in the male body C. Male breast cells do not have the genes required for breast tissue enlargement D. Male breast cells have fewer estrogen receptors then females