WorksheetsCategory 4 STAAR Review, 8th Grade Science
Total questions: 14
Worksheet time: 2hrs 49mins
Name
Class
Date
1.
The living organisms in an ecosystem such as plants and animals
a)
adaptation
b)
biotic
c)
decomposer
d)
abiotic
2.
The non-living factors in an ecosystem such as rocks, water and temperature.
a)
natural selection
b)
biotic
c)
biodiversity
d)
abiotic
3.
Organisms that make their own food. Also called autotrophs.
a)
Producer
b)
Parasite
c)
Scavenger
d)
Decomposer
4.
Organisms that eat other organisms (heterotroph).
a)
Producer
b)
Parasite
c)
Consumer
d)
Scavenger
5.
Organisms that digest dead producers and consumers such as mold, fungus, bacteria and worms.
a)
Producer
b)
Parasite
c)
Decomposer
d)
Consumer
6.
Organisms, such as vultures, that feed on dead animals.
a)
Producer
b)
Scavenger
c)
Consumer
d)
Parasite
7.
Organisms that live in or on another organism and benefit at the host's expense.
a)
Parasite
b)
Producer
c)
Scavenger
d)
Decomposer
8.
Struggle between organisms of the same or different species for food, space, light, water, etc.
a)
Interdependence
b)
Natural Selection
c)
Adaptation
d)
Competition
9.
Process by which an animal or plant species becomes fitted to its environment to help them survive.
a)
Interdependence
b)
Natural Selection
c)
Adaptation
d)
Competition
10.
Photosynthetic plant that is the beginning of the food chain for many aquatic animals.
a)
Phytoplankton
b)
Parasite
c)
Producer
d)
Consumer
11.
Mutual dependence between organisms in order to help them survive.
a)
Competition
b)
Interdependence
c)
Adaptation
d)
Natural Selection
12.
Variety of life
a)
Natural Selection
b)
Ecological Succession
c)
Interdependence
d)
Biodiversity
13.
Gradual and orderly process of change in an ecosystem until a stable community is established.
a)
Ecological Succession
b)
Biodiversity
c)
Adaptation
d)
Competition
14.
Process by which organisms that are suited to a particular environment are better able to survive and reproduce than other organisms that are not.
a)
Ecological Succession
b)
Biodiversity
c)
Natural Selection
d)
Producer
100 %
