Ecosystems

Question 1

Ecosystem

Answer 1

all of the living and nonliving parts of an ecosystem as well as the interactions among them

Question 2

Biotic factor

Answer 2

the living parts of an ecosystem

Question 3

Abiotic factors

Answer 3

the nonliving parts of an ecosystem

Question 4

Habitat

Answer 4

the place where an organism lives

Question 5

Niche

Answer 5

an organism’s role in it’s environment

Question 6

Species

Answer 6

a group of organisms that share most characteristics and can breed
with one another

Question 7

Population

Answer 7

all the organisms of a species that live in the same place at the same time

Question 8

Community

Answer 8

all the populations of organisms in an ecosystem

Question 9

Photosynthesis

Answer 9

the process by which plants use the energy of sunlight to make their own food

Question 10

Chemosynthesis

Answer 10

the process by which some marine organisms use the
energy stored in chemicals to make their own food

Question 11

Consumer

Answer 11

An organism that cannot make its own food

Question 12

Decomposer

Answer 12

an organism that gets its energy by breaking down the remains
of dead organisms and the wastes of living things

Question 13

Tropic level

Answer 13

each feeding level in an ecosystem

Question 14

Food chain

Answer 14

a series of organisms in which each feeds on the one at the next
lower level

Question 15

Food web

Answer 15

a network of interconnected food chains in an ecosystem