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Aquatic Adaptations and Population Dynamics PRACTICE

Total questions: 19

Worksheet time: 26mins

Name
Class
Date
1.

A group of organisms that mate and produce offspring

a)

Species

b)

Cells

c)

Kingdoms

d)

Genes

2.

A species is a group of organisms with the same ...............

a)

colour

b)

size

c)

features

d)

appearance

3.

An inherited trait that helps those organisms that have it to survive

a)

niche

b)

structure

c)

characteristic

d)

adaptation

4.
How do adaptations help animals?
a)
to hide from predators
b)
to hunt for food
c)
to survive in their habitats
d)
All of these are correct
5.

What special organ allows bony fish to float in water?

a)

Dorsal Fins

b)

Swim Bladder

c)

Pineal Gland

d)

Operculum

6.

What adaptation allows fish to swim through the water easier?

a)

Toxins

b)

Spikes

c)

Slime

d)

Gills

7.
An organism's _________ is defined as the environment in which it lives.
a)
habitat
b)
niche
c)
social structure
d)
ecosystem
8.

The ecological role an organism performs in their specific environment is considered the organism's...

a)

Habitat

b)

Population

c)

Biome

d)

Niche

9.

A squirrels habitat would be _____________.

a)

Ocean

b)

Arctic

c)

Forest

d)

Dessert

10.

A whale's niche would be which of the following?

a)

eating plankton and krill.

b)

eating sharks and dolphins.

c)

eating hamburgers and fries.

d)

eating other whales.

11.

If a prey population rises, how will the predator population be affected?

a)

The predator population will remain stabe.

b)

The predator population will rise with it.

c)

The predator population will fall.

d)

The predator population will fluctuate randomly.

12.

Water lilies do not grow in the desert because water availability is:

a)

a limiting factor

b)

the carrying capacity

c)

a competition factor

d)

the logistic growth curve

13.
Food, water, sunlight, shelter, and space are resources that are  __________.
a)
limiting factors
b)
wet
c)
messy
d)
found in rocks
14.

A group of organisms of the same species that live in the same habitat is called .....

a)

species

b)

population

c)

community

d)

ecosystem

15.

Groups of different populations that live in a given area and interact are called a(n)...

a)

Community

b)

Colony

c)

Population

d)

Ecosystem

16.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
17.

As a population of a species increases within a territory, which of the following most likely also increases?

a)

Immigration

b)

Food supply

c)

Carrying capacity

d)

Competition

18.
What is an invasive species?
a)
A native (naturally found) species which are added to an area. 
b)
A non-native (not naturally found) species added to an area. 
c)
A keystone species in an environment
d)
none of the above
19.

Invasive species alter the ecosystem by _____ in number quickly. This leads to _____ food for the native species.

a)

increasing, less

b)

increasing, more

c)

decreasing, less

d)

decreasing, more