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WorksheetsLife Science - Organisms
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
A _________ is all the organisms that live in an area together with living and nonliving factors of the environment.
a)
ecology
b)
ecosystem
c)
community
d)
population
2.
A ________ is a group of organisms that can mate and produce offspring that in turn can produce more offspring.
a)
ecosystem
b)
community
c)
population
d)
species
3.
A type of consumer that eats only meat is called a ___________.
a)
herbivore
b)
omnivore
c)
carnivore
d)
decomposer
4.
Plants, algae, and bacteria that make their own food are __________.
a)
producers
b)
consumers
c)
decomposers
d)
tertiary consumer
5.
A _________ traces the path of energy as it moves from one organism to the next in an ecosystem.
a)
food web
b)
food chain
c)
energy pyramid
d)
carbon dioxide-oxygen cycle
6.
Which is a primary consumer?
a)
tiger
b)
grass
c)
snail
d)
snake
7.
What eats the remains of organisms left behind by other animals?
a)
herbivores
b)
omnivores
c)
producers
d)
scavengers
8.
What is a system of several overlapping food chains called?
a)
Food chain
b)
Food web
c)
Energy pyramid
d)
Nitrogen cycle
9.
The constant movement of nitrogen between living things and the environment is represented by the ___________.
a)
Carbon dioxide-oxygen cycle
b)
Energy pyramid
c)
Nitrogen cycle
d)
Food web
10.
What is the part of Earth that supports life?
a)
Hemisphere
b)
Biosphere
c)
Climate
d)
Biome
11.
A ______ is a cold, dry, mostly treeless land biome that encircles the Arctic Ocean?
a)
Tundra
b)
Grassland
c)
Rain forest
d)
Desert
12.
A ________ is a type of marine ecosystem common in many tropical regions.
a)
plankton
b)
open-ocean zone
c)
intertidal zone
d)
coral reef
13.
Areas where freshwater rivers flow into the ocean are known as ______.
a)
estuaries
b)
open-ocean zone
c)
intertidal zone
d)
kingdom
14.
Who was the first person known to classify living things scientifically?
a)
Linnaeus
b)
Aristotle
c)
Plato
d)
Hercules
15.
Animals without backbones are called ___.
a)
vertebrates
b)
invertebrates
c)
protist
d)
autotrophs
16.
Animals with backbones are called _____.
a)
vertebrates
b)
invertebrates
c)
kingdom
d)
varieties
17.
Which word means "self-feeder?"
a)
autotroph
b)
heterotroph
c)
prokaryotes
d)
eukaryotes
18.
Grasses, tomato plants, and dandelions are all classified as ________.
a)
phloem
b)
arthropods
c)
herbaceous
d)
xylem
19.
What is used to show the evolutionary relationships among the different divisions of plants making up the plant kingdom?
a)
protist
b)
taxonomic tree
c)
nonvascular plant
d)
vascular plant
20.
What helps you identify organisms by presenting you with a series of choices?
a)
dichotomous key
b)
protist
c)
taxonomic tree
d)
arthropod
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