A food chain consists of a seagull eating a dead swordfish that had eaten a bluefish. The bluefish had eaten shrimp that had eaten photosynthetic algae. Which organism in this food chain can be classified as a scavenger.

a. Seagull
b. Bluefish
c. Swordfish

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water.b. they use chlorophyll and oxygen to make carbon dioxide and water.c. they use sunlight, water, and carbon dioxide to make sugars.d. they use sunlight, water, and oxygen to make chlorophyll.