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Life Science practice questions for Semester 1 final

Total questions: 48

Worksheet time: 44mins

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.

The following list represents characteristics of a living thing :

a)

made of cells, has lungs, can reproduce

b)

grows and develops, responds to surroundings, can move

c)

has similar chemicals, makes noises, made of cells

d)

made of cells, grows and develops, uses energy

3.

Which of the following characteristics of living things best explains why birds fly south for the winter?

a)

Living things respond to their environment.

b)

Living things maintain internal balance.

c)

Living things are made up of units called cells.

d)

Living things are based on a universal genetic code.

4.

An organism made up of more than one cell would be called:

a)

multicellular

b)

unicellular

c)

heterotroph

d)

autotroph

5.
What is the most basic unit of life?
a)
cell
b)
tissue
c)
organ
d)
organ system
6.

Reproduction that only involves one parent and all offspring are identical; for example, binary fission of bacteria or amoebas.

a)

Asexual

b)

Sexual

c)

Division

d)

Addition

7.

Reproduction that involves cells from two parents uniting to produce the first cell of a new organism.

a)

Asexual

b)

Sexual

c)

Budding

d)

Division

8.

Maintaining a stable internal environment is called

a)

homeostasis

b)

equilibrium

c)

balance

d)

evenness

9.

Identify the characteristic: Green plants produce their own food through the process of photosynthesis.

a)

All living things use energy

b)

All living things contain cells

c)

All living things maintain homeostasis

d)

All living things grow

10.

Identify the characteristic: A camel has eyelashes that work to keep the dust and sand out of its eyes.

a)

All living things adapt/respond to their environment

b)

All living things grow

c)

All living things have cells

d)

All living things use energy

11.
Multicellular means
a)
made of many cells
b)
made of one kind of cell
c)
made of only one cell
12.
Which of the following is NOT a characteristic shared by all living organisms?
a)
Ability to move
b)
Ability to grow and develop
c)
Made up of one or more cells
d)
Responds to stimuli
13.
Members of a species in a defined area
a)
Ecosystem
b)
community
c)
biodiversity
d)
population
14.
Non-living factor that affects an ecosystem
a)
biotic factor
b)
abiotic factor
c)
food chain 
d)
biome
15.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
16.
The nonliving aspects of an ecosystem.
a)
Abiotic factors
b)
Biotic factors
17.
A collection of organisms that belong to different populations but all live in the same area and interact with one another.
a)
Population
b)
Ecosystem
c)
Community
d)
Ecosphere
18.

In this photo, what is an abiotic factor?

a)

Deer

b)

Grass

c)

rain

19.

The monkey would be a

a)

decomposer

b)

producer

c)

primary consumer

d)

secondary consumer

20.

Mice might grow in population and destroy the community by eating all of the berry bushes if

a)

wolves and snakes were removed from the food web

b)

another predator migrated in to the community

c)

the snake population grew

d)

none of these

21.

These organisms are often not shown in a food chain, but are important for recycling nutrients

a)

producers

b)

decomposers

c)

primary consumers

d)

carnivores

22.

What is an ecosystem??

a)

A group of organism of one species

b)

All the living and non-living things that interact in an area

c)

The study of the interaction between living organism and their environment

d)

Soil, water, air and sunliight

23.

what is the picture??

a)

Food chain

b)

Food web

c)

Food maps

d)

Mind mapping

24.

What are the organisms that break down dead stuff?

a)

Producer

b)

consumer

c)

Organism

d)

Decomposer

25.

The dragonfly provides energy for the .......??

a)

Butterfly

b)

Wolf

c)

Lavanders

d)

Thrush

26.

What is it??

a)

Herbivores

b)

Carnivores

c)

omnivore

d)

All correct

27.

What is an organism?

a)

Several animals, plants, or single-celled life forms.

b)

An individual animal, plant, or single-celled obejct.

c)

An individual animal, plant, or single-celled life form.

d)

Several animals and plants.

28.
What does the picture show?
a)
A Food Web
b)
An Ecosystem
c)
A Food Chain
d)
A nice scenery
29.
What type of organism always starts the food chain?
a)
Producer (Plants)
b)
Consumers (Organisms)
c)
Predators (Organisms)
d)
Decomposers 
30.
What is a carnivore?
a)
An organism that only eats plants
b)
An organism that only eats other animals
c)
An organism that eats plants and animals
31.

The largest number of individuals that an environment can support long term is...

a)

carrying capacity

b)

emigration

c)

immigration

d)

population density

32.

Something that regulates the size of a population is called...

a)

a limiting measure

b)

a limiting factor

c)

carrying capacity

d)

biodiversity

33.

What is the carrying capacity of the graph?

a)

around 500

b)

more than 800

c)

less than 300

d)

around 700

34.
Which of the following would INCREASE the carrying capacity of an ecosystem?
a)
increase in predators
b)
disease
c)
increase in available food
d)
drought
35.

What is the carrying capacity of the graph?

a)

1000

b)

8000

c)

800

d)

600

36.
If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?
a)
The bird population would stay the same
b)
The bird population would infinitely increase
c)
The bird population would decrease
37.
The largest number of individuals that an area can support is called its _______.
a)
limiting factor
b)
abiotic factor
c)
resource availability
d)
carrying capacity
38.

The graph to the right shows the interaction of the wolf and moose populations on Isle Pekie. If the moose population continues to increase, the wolves' food supply will increase. What will most likely happen to the wolf population as a result?

a)

It will decrease.

b)

It will increase.

c)

It will remain the same.

39.

Two arctic fox are fighting with a polar bear for a sea lion carcass. One fox distracts the bear while the other eats. What type of limiting factor is the polar bear?

a)

Predator-Prey Relationships

b)

Competition

c)

Herbivory Effect

d)

Weather

40.
Environmental factors that keep a population from increasing. 
a)
Carrying Capacity
b)
Limiting Factors
41.
Which is NOT an example of a limiting factor.
a)
Climate
b)
Available Food & Water
c)
Available Space & Shelter
d)
Species color
42.
What happens when an environment reaches its carrying capacity?
a)
Populations will decrease
b)
Resources such as food, water, and space will be unlimited
c)
Populations will increase
d)
Nothing, everything will stay the same.
43.

What point on the graph represents the carrying capacity?

a)

A

b)

B

c)

C

d)

D

44.

Water, sunlight, shelter, and space are resources that are often........

a)

abiotic limiting factors

b)

biotic limiting factors

c)

non-limiting factors

d)

exponetial factors

45.

What is a predator?

a)

An animal that is killed and eaten by other animals

b)

An animal that kills and eats other animals

46.
Which of the following would be considered to be prey?
a)
an animal that has to hunt for its food
b)
an animal that is eaten by another animal
c)
an organism that makes it own food
d)
an organism that feeds on the blood of another animal
47.

A consumer that hunts is called

a)

Producers

b)

Omnivore

c)

Predator

d)

Herbivore

48.

What is the role of the bird?

a)

Predator

b)

Producer

c)

Prey

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