Question

name:
q.11. the diagram below symbolizes a simple food chain.

in this food chain, which organism would most likely to be \x\?
a) fox b) wolf
c) rabbit d) grass
q.12. which of the following statements is true?
a) food webs a linear.
b) a food web consists of many interwoven food chains.
c) the top of the food chain has the most energy.
d) organisms higher in a food chain eat everything that is lower in the food chain.

use the food web below to answer the next two questions. (q.13 - q.14)

q.13. in the food web above, which organism would most likely to be \a\?
a) hawk b) goat
c) squirrel d) ant
q.14. if the population of rabbits decreases, what is likely to happen?
a) the population of foxes will stay the same.
b) the population of foxes will increase.
c) the population of grasses will increase.
d) the population of grasses will decrease.

Explanation:

• Q.11: In a food chain, it starts with a producer. Grass is a producer (makes its own food via photosynthesis), while fox, wolf, and rabbit are consumers.
• Q.12: A food web is made up of many interwoven food chains. Food chains are linear, but food webs are complex. Energy decreases as we move up the food chain (so top of food chain has less energy), and organisms higher up don't eat everything lower (e.g., a frog doesn't eat grass even if it's lower in a broader sense).
• Q.13: In the food web, "A" is at the top - a hawk is a top - level predator. Goat, squirrel, and ant are not top predators in this context.
• Q.14: If rabbit population decreases (rabbits eat grass), less grass is eaten. So grass population is likely to increase. Foxes (which eat rabbits) would have less food, so their population would likely decrease.

Answer:

• Q.11: d) Grass
• Q.12: b) A food web consists of many interwoven food chains.
• Q.13: a) Hawk
• Q.14: c) The population of grasses will increase.