Question

1. scientists classify clams as consumers. which observation about clams provides the strongest evidence for this classification?

a. young clams are able to move from place to place.
b. clams gain energy and nutrients by filtering particles from the water.
c. clams use calcium compounds to make a hard shell.
d. clams live on the ocean floor, and sometimes survive without sunlight.

1. this diagram is a model of a biological process.

carbon dioxide + water
light energy
carbohydrates + oxygen
which of the following is modeled in the diagram?
a. the role of photosynthesis in breaking apart carbohydrates for their energy
b. the role of photosynthesis in adding carbon dioxide to the atmosphere
c. the role of photosynthesis in transferring carbon from the atmosphere to the biosphere
d. the role of photosynthesis in transferring carbon dioxide from the hydrosphere to the biosphere

Explanation:

For question 4, consumers obtain energy and nutrients by consuming other organisms or organic matter. Clams filtering particles from water shows they are consuming, which is characteristic of consumers. For question 5, photosynthesis uses carbon - dioxide from the atmosphere, water, and light energy to produce carbohydrates and oxygen, thus transferring carbon from the atmosphere to the biosphere.

Answer:

1. a. Young clams are able to move from place to place and gain energy and nutrients by filtering particles from the water.
2. c. The role of photosynthesis in transferring carbon from the atmosphere to the biosphere.