Science Test

Question 1

Ecosystem

Answer 1

All living and non living things interacting in an area

Question 2

Habitat

Answer 2

The place where an organism lives and provides the things the organism needs

Question 3

Biotic Factors

Answer 3

All the living things in an ecosystem

Question 4

Abiotic factors

Answer 4

All the non-living things in an ecosystem

Question 5

Population

Answer 5

All the members of one species in one area

Question 6

Community

Answer 6

All the different populations in one area

Question 7

Ecology

Answer 7

The study of how living things interact with each other and their environments

Question 8

Biodiversity

Answer 8

The number of different species in an ecosystem. ( bio= life; diversity =different forms of)

Question 9

Niche

Answer 9

An organism’s particular role in an ecosystem or how it makes a living

Question 10

Competition

Answer 10

The struggle between organisms for the limited resources in a habitat

Question 11

Predation

Answer 11

An interaction in which one organism hunts another animal for food.

Question 12

Predator

Answer 12

A carnivore that hunts and kills other animals for food and has adaptations that help the animal catch the prey

Question 13

oxygen cycle

Answer 13

the cycling of oxygen through the environment through photosynthesis and respiration

Question 14

carbon cycle

Answer 14

the cycling of carbon through the environment through photosynthesis, respiration, and burning of fossil fuels

Question 15

nitrogen fixation

Answer 15

the way bacteria in the soil convert nitrogen gas to a usable form for plants and animals

Question 16

Improvements in fishing techniques have led to an
increase in the amount of herring harvested in recent decades.
What would be a direct effect of increased harvests of herring?

Answer 16

The shrimp population would increase.

Question 17

Which of these organisms is not an omnivore
A herring
B shrimp
C blue whale
D killer whale

Answer 17

b. the shrimp