Question

which statement describes all primary producers? * 2 points
all harness the energy of sunlight through the process of photosynthesis.
all take in energy to assemble energy - rich compounds.
all are small, single - celled organisms, such as bacteria and algae.
all take in food and break it apart to release energy.
the diagram shows a model of feeding relationships in an ecosystem? * 2 points
what is shown by the arrows that lead to and from the raccoon?
the raccoon is part of several food chains, but not a food web.
the raccoon is part of several food chains and several food webs.
the raccoon is part of one food web, but no food chains.
the raccoon is part of one food web and several overlapping food chains.

Explanation:

1. Primary producers are organisms that can make their own food by taking in energy to assemble energy - rich compounds. Not all use photosynthesis (some are chemosynthetic), not all are small single - celled, and they don't take in food to break it apart for energy like consumers do.
2. In an ecosystem, a food web is made up of multiple overlapping food chains. The arrows in the diagram show the raccoon is part of a food web which consists of several overlapping food chains.

Answer:

1. B. All take in energy to assemble energy - rich compounds.
2. D. The raccoon is part of one food web and several overlapping food chains.