Lesson: 11 Food Chains & Food Webs

Question 1

Primary producers (autotrophs)

Answer 1

Use solar to make their own food.

Question 2

Primary consumers (heterotrophs)

Answer 2

Herbivores: eat mostly green plants.

Question 3

Secondary & Tertiary consumers

Answer 3

Carnivores & Omnivores

Question 4

Chlorophyll

Answer 4

A green pigment that captures light energy to convert CO2 & H2o into organic matter.

Question 5

Detritus

Answer 5

Dead plant material

Question 6

Scavengers

Answer 6

Decomposers that break down large pieces of matter.
Ex: vultures

Question 7

Detritus feeders

Answer 7

Decomposers that eat partly decomposed matter.
Ex: earthworms

Question 8

Chemical decomposers

Answer 8

Breaks down molecule-sized matter
Ex: fungi & bacteria

Question 9

Aerobic Respiration

Question 10

Anaerobic Respiration

Answer 10

Breaks down glucose when there no oxygen to produce methane, ethanol, acetic acid, and hydrogen sulfide.

Question 11

Food chain

Answer 11

Pathway of energy through trophic levels.

Question 12

Biomass

Answer 12

The dry weight of all organic matter in an organism.

Question 13

Bioaccumulation

Answer 13

Toxins accumulate in the tissues of species. (cats of Borneo)

Question 14

Biomagnification

Answer 14

Toxins moving up in the trophic levels. (class example)

Question 15

Gross primary productivity (GPP)

Question 16

Net primary productivity (NPP)