Ecosystems

Question 1

what is an ecosystem

Answer 1

all of the organisms in an area including abiotic factors

Question 2

ecosystem =

Answer 2

biotic + abiotic

Question 3

trophic levels

Answer 3

producers, primary, secondary, and tertiary consumers

Question 4

food chain example

Answer 4

grass to grasshoper to bird

Question 5

what is a food web

Answer 5

a complex web of multiple food chains connected

Question 6

how much energy is transferred between each level of the trophic pyramid

Answer 6

10%

Question 7

ecosystems are self

Answer 7

sustaining

Question 8

all matter stays

Answer 8

in the ecosystem

Question 9

if a cat eats a mouse that has 10 kcalories, how much energy is transferred to the cat?

Answer 9

1 kcal

Question 10

what are autotrophs

Answer 10

organisms that produce their own food

Question 11

are all producers autotrophs?

Answer 11

yes

Question 12

are all heterotrophs consumers?

Answer 12

yes

Question 13

what is a trophic cascade

Answer 13

how organisms affect the other organisms in the ecosystem

Question 14

a direct effect is represented by

Answer 14

a solid arrow

Question 15

an indirect effect is represented by

Answer 15

a dashed arrow

Question 16

a negative effect is shown by

Answer 16

a negative symbol

Question 17

a positive effect is shown by

Answer 17

a positive sign

Question 18

organisms can exist at

Answer 18

multiple trophic levels

Question 19

energy can be stored, converted, and

Answer 19

transferred between organisms

Question 20

is a hawk a heterotroph or autotroph

Answer 20

heterotroph

Question 21

what is a carnivore

Answer 21

an organism that eats only meat

Question 22

what is an omnivore

Answer 22

an organism that eats both plants and meat

Question 23

what is an herbivore

Answer 23

an organism that eats only plants

Question 24

herbivores are

Answer 24

organisms that are primary consumers only

Question 25

organisms that are both secondary and primary consumers are

Answer 25

omnivores

Question 26

organisms that are secondary consumers and higher only are

Answer 26

carnivores

Question 27

an organism eats kiwi and bacon. Is it a carnivore?

Answer 27

No, it is an omnivore