Question 1

Which of the following best describes the difference between acclimatization and adaptation in organisms?

Accepted Answer

Acclimatization is a short-term, reversible physiological or behavioral change, while adaptation is a long-term genetic change in a population.

Question 2

A population of fish is found only in a single lake, despite similar lakes nearby. Which of the following is LEAST likely to explain this limited distribution?

Accepted Answer

The fish's ability to photosynthesize

Question 3

Which of the following is an example of tolerance as a strategy for coping with environmental stress?

Accepted Answer

A polar bear's thick fur insulating it from the cold

Question 4

Why do extreme temperatures negatively affect enzyme activity in living organisms?

Accepted Answer

Extreme heat denatures enzymes, while extreme cold slows chemical reactions.

Question 5

Which of the following equations best describes the direction of water movement by osmosis?

Accepted Answer

$$Water \, flows \, from \, low \, to \, high \, solute \, concentration$$

Question 6

A freshwater fish is described as hyperosmotic to its environment. What does this mean for water movement?

Accepted Answer

Water will tend to enter the fish's body, risking overhydration.

Question 7

Which adaptation would most likely be found in a desert plant to conserve water?

Accepted Answer

Having waxy leaves to reduce evaporation

Question 8

Which of the following is a tradeoff associated with water conservation in mammals?

Accepted Answer

Sweat glands help with cooling but require water loss

Question 9

Why do smaller organisms generally lose water faster than larger organisms?

Accepted Answer

They have a larger surface area relative to volume

Question 10

Which of the following best explains why the actual distribution of a species is often smaller than its potential distribution?

Accepted Answer

Geographic barriers and species interactions limit actual distribution

Question 11

Which of the following is an example of avoidance as a strategy for coping with environmental stress?

Accepted Answer

A bird migrating to a warmer region during winter

Question 12

What is the main benefit of dormancy for an organism?

Accepted Answer

It minimizes metabolic activity when conditions are unfavorable.

Question 13

Which of the following best describes the relationship between surface area to volume ratio and heat exchange in animals?

Accepted Answer

A larger surface area to volume ratio increases heat exchange.

Question 14

Which of the following is a physiological adaptation that helps kangaroo rats survive in arid environments?

Accepted Answer

Converting fats into water and carbohydrates

Question 15

Which of the following statements about osmosis is correct?

Accepted Answer

Water moves from areas of low solute concentration to high solute concentration.

Question 16

Which of the following is a likely consequence for a marine fish that is hypoosmotic to its environment?

Accepted Answer

It will lose water by osmosis and must drink seawater to compensate.

Question 17

Which of the following is NOT a way that plants can conserve water?

Accepted Answer

Increasing the number of open stomata during the day

Question 18

Which of the following best describes an ecotype?

Accepted Answer

A population with adaptations to unique environmental conditions

Question 19

Which of the following is a potential tradeoff for behavioral avoidance of environmental stress?

Accepted Answer

Reduced time for feeding, leading to slower growth

Individuals Coping with Their Environment: Temperature and Water

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