2c

Question 0

autotrophs

Answer 0

use energy from the sun or from stored chemical compounds to produce energy

Question 1

ecosystem requirements

Answer 1

1. continuous supply of energy

2. A flow of energy from one population to another

Question 2

heterotrophs

Answer 2

must consume their energy

Question 3

herbivores

Answer 3

eat plants only

autotrophs

Question 4

carnivores

Answer 4

eat meat only-other heterotrophs

Question 5

carnivores :predators

Answer 5

kill their own food

Question 6

carnivores: scavengers

Answer 6

eat animals that are dead weak or sick

Question 7

omnivores

Answer 7

eat autotroph’s and heterotrophs (animals and plants)

Question 8

detritivore

decomposers

Answer 8

decompose organic matter and return nutrients to the environment
examples are fungus and bacteria

Question 9

food chain

Answer 9

A single pathway of feeding relationships among organisms in an ecosystem that results in energy transfer

Question 10

food web

Answer 10

A diagram of the feeding relationships among all the organisms in an ecosystem
or many food chains interlinked

Question 11

The energy pyramid

Answer 11

made up of seven trophic levels

Question 12

trophic level or feeding level

Answer 12

A group of organisms his feeding source is the same number of steps from the sun

Question 13

first trophic level

Answer 13

primary producers
(autotroph's)

Question 14

Second trophic level

Answer 14

primary consumers(herbivores)

Question 15

third trophic and fourth trophic levels

Answer 15

secondary and tertiary consumers (carnivores omnivores and predators)

Question 16

can animals feed at more than one trophic level

Answer 16

yes

Question 17

where do producers absorb energy from

Answer 17

the sun

Question 18

how much of the energy captured from the sun becomes part of the plants body

Answer 18

half

Question 19

where does the rest go

Answer 19

it is used for living and growing or lost as heat

Question 20

at each trophic level how much is the energy stored in an organism differ from the level below it

Answer 20

10%

Question 21

higher trophic levels (large carnivores) equal

Answer 21

fewer in number than those at lower trophic levels(producers)

Question 22

what does the number of organisms at each trophic level do as you step up the Pyramid

Answer 22

decrease

Question 23

biomass

Answer 23

living organic matter

also is reduced at each trophic level

Question 24

bioaccumulation

Answer 24

begins at the first level of the food chain where there is an increase in the concentration of a pollutant from the environment to the first consumer

Question 25

because the amount of energy required gets higher at each level those organisms have to consume more and that’s can accumulate higher levels of the contaminants in their bodies

Answer 25

bioaccumulation explained

Question 26

Biomagnification

Answer 26

occurs when the concentration of a pollutant increases from one link in the food chain to another

Question 27

example of biomagnification:
The Partridge eats 10 grasshoppers The Hawk eats three partridges
A pesticide that you put in your yard is consumed by the grasshoppers

Answer 27

The grasshopper consumed 1 mg the Partridge ingested 10 mg and the Hawk consumed 30 mg