NEW
Font size
S
M
L
XL
WorksheetsDN Mar.18
Total questions: 14
Worksheet time: 20mins
Name
Class
Date
1.
How can you tell this plant is a living thing?
a)
It doesn't move.
b)
It is made up of different parts.
c)
It responds to a change in its environment.
d)
It needs shelter.
2.
What is the correct chemical formula for water?
a)
H2O
b)
HO2
c)
H2O2
d)
2H1O
3.
Water is polar. What does that mean?
a)
it is a molecule with opposite charges on opposite ends
b)
it is a molecule with no charge
c)
it is a molecule with identical charges on opposite ends
d)
it is a molecule with too many protons
4.
What is A?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Runoff
5.
How do living organisms return carbon to the atmosphere in the carbon cycle?
a)
respiration and photosynthesis
b)
decomposition and respiration
6.
What does not produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
7.
Where do all life forms get their energy?
a)
Earth's Core
b)
Water
c)
Plants
d)
The Sun
8.
What is the carrying capacity of the graph?
a)
around 500
b)
more than 800
c)
less than 300
d)
around 700
9.
What is a keystone species?
a)
A species that helps to hold an ecosystem together
b)
A species that lives in or around rocks
c)
Keys and stones have nothing to do with ecology
d)
A keystone isn't a living thing, it's just a stone
10.
Biodiversity refers to
a)
extinct species
b)
the variety of species on Earth
c)
nonrenewable resources
d)
the rate of species decline
11.
When taken to a new habitat, non-native plants often threaten native plants of the new habitat. Why do they do this?
a)
Non-native plants are able to mutate rapidly
b)
Non-native plants cause native animals to relocate
c)
Non-native plants are able to be used for medicine
d)
Non-native plants compete with native plants for resources
12.
1. What makes a species invasive?
a)
Moving to a new ecosystem and taking resources from natives
b)
Not having papers
c)
Species that can't adapt
d)
Plants that take up too much space
13.
A tapeworm and a cat have this type of relationship.
a)
mutualism
b)
parasitism
c)
commensalism
d)
competition
14.
A relationship in which two species live closely together.
a)
resource
b)
mutualism
c)
succession
d)
symbiosis
Reset
