Chapter 1.3

Question 1

producer

Answer 1

an organism that uses light energy to synthesize sugars and other organic compounds through the process of photosynthesis

Question 2

consumer

Answer 2

an organism that uses other organisms as a source of energy

Question 3

herbivore (primary consumer)

Answer 3

an organism that eats green plants, algae, or phytoplanktons

Question 4

secondary consumer

Answer 4

an organism that eats herbivores

Question 5

tertiary consumer

Answer 5

an organism that eats secondary consumers

Question 6

carnivore

Answer 6

an organism that kills and eats other animals

Question 7

omnivore

Answer 7

an organism that eats both plants and animals

Question 8

scavenger

Answer 8

a bird or animal that feeds on dead and decaying animals that it did not kill itself

Question 9

decomposer

Answer 9

an organism that breaks down complex, organic molecules into simpler molecules

Question 10

trophic level

Answer 10

the division of species within an ecosystem based upon its energy source

Question 11

food chain

Answer 11

the pathway along which food is transferred from one trophic level to the next

Question 12

food web

Answer 12

the interconnecting feeding relationships within an ecosystem