1.19 Unit Test: Interdependence of Life - Part 1 Module Exam Review I took this test and got a 87% on it.
Here are the real correct answers for whoever doesn't know.

Question 1: Which of the following is true?

(A). Plant cells are unaffected when water is scarce.
(B). Some substances must be dissolved in water before they can be used.
(C). All organisms obtain water through food.
(D). Water is important to some organisms.

Option (B) is the correct Some substances must be dissolved in water before they can be used.

Question 2: Which of the following is one way that the circulatory system helps maintain body temperature?

(A). Controlling the flow of blood to the skin.
(B). Carrying the heat around the body.
(C). Speeding up the blood flow to generate heat.
(D). Carrying nutrients and energy to cells.

Option (A) is the correct Controlling the flow of blood to the skin.

Question 3: Which of the following describes a response to external stimuli?

(A). A woman drinks water when she is thirsty.
(B). A rabbit runs away from a fox that is chasing it.
(C). A boy eats food when he is hungry.
(D). A person yawns when oxygen levels in the blood are low.

Option (B) is the correct A rabbit runs away from a fox that is chasing it.

Question 4: Which of these is not a response to internal stimuli?

(A). Wearing sunglasses to protect eyes from UV rays.
(B). Eating when hungry.
(C). Breathing hard when exercising because of a drop in oxygen levels.
(D). Drinking when thirsty.

Option (A) is the correct Wearing sunglasses to protect eyes from UV rays.

Question 5: How would a houseplant respond to sunlight that comes from one direction?

(A). By curling its stem around its leaves.
(B). By bending its stem toward the sun.
(C). By growing roots downward through the soil.
(D). By closing its leaves at night.

Option (B) is the correct By bending its stem toward the sun.

Question 6: Which condition is a biotic factor of an aquarium ecosystem?

(A). Temperature of the water.
(B). Algae growing on the glass.
(C). Gravel on the bottom of the aquarium.
(D). Amount of oxygen in the water.

Option (B) is the correct Algae growing on the glass.

Question 7: Which choice is an abiotic factor of an ecosystem?

(A). Fungi.
(B). Ants.
(C). Minerals.
(D). Dogs.

Option (C) is the correct Minerals.

Question 8: Which place describes a community?

(A). A hole in which a snake lives.
(B). A desert of sand, rocks, hawks, and snakes.
(C). The desert.
(D). A forest of birds, insects, and squirrels.

Option (D) is the correct A forest of birds, insects, and squirrels.

Question 9: What is a key element found in CO2 and glucose?

(A). Ammonia.
(B). Carbon.
(C). Legumes.
(D). Nitrogen.

Option (B) is the correct Carbon.

Question 10: Which choice is an example of a producer?

(A). Sun.
(B). Water.
(C). Bird.
(D). Tree.

Option (D) is the correct Tree.

Question 11: Which choice is an example of a consumer?

(A): Bee.
(B). Fungi.
(C). Sun.
(D). Tree.

Option (A) is the correct Bee.

Question 12: Which organism provides energy to all other organisms in this ecosystem?

(A). Prairie Dog.
(B). Coyote.
(C). Prairie Glass.
(D). Vulture.

Option (C) is the correct Prairie Glass.

Question 13: Which choice is likely to result in the most competition?

(A). Organisms that are classified in the same phylum.
(B). Organisms that live in the same area.
(C). Organisms that use the same resource.
(D). Organisms that live in different ecosystems.

Option (C) is the correct Organisms that use the same resource.

Question 14: Which of the following is an example of competition that could be found in a forest?

(A). Deer eat berries and their droppings seed new areas creating more berry bushes.
(B). Two hawk populations utilize the same scorpion population as their main food source.
(C). Lack of sunlight due to changes in the seasons restricts the growth of certain parts.
(D). Two fox populations utilize the same rabbit populations as their main food source.

Option (D) is the correct Two fox populations utilize the same rabbit populations as their main food source.

Last Question!

Question 15: Which situation is an example of competition that could be found in grassland?

(A). Two lion populations utilize the same gazelle population as their main food source.
(B). Deer eat berries and their droppings seed new areas, creating new berry bushes.
(C). Lack of sunlight due to changes in the seasons restricts the growth of certain parts.
(D). Two shark populations utilize the same fish population as their main food source.

Option (A) is the correct Two lion populations utilize the same gazelle population as their main food source.

I hope this helps!