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Pre-test in Life Science

Total questions: 30

Worksheet time: 25mins

Name
Class
Date
1.
A cell bringing in oxygen and releasing carbon dioxide through the cell membrane go along with which characteristic of life?
a)
Living things require water
b)
Living things reproduce
c)
Living things exchange gases
d)
Living things respond to their environment
2.
An important inorganic compound in our body is
a)
water
b)
carbohydrates
c)
proteins
d)
lipids
3.
All living things
a)
reproduce sexually
b)
breathe
c)
eat
d)
require energy
4.
Cells are filled with 
a)
cytoplasm
b)
jello
c)
glitter
d)
protoplasm
5.
All cells have a nucleus
a)
true
b)
false
6.
Decomposers and consumers are both
a)
autotrophs
b)
heterotrophs
7.
What is diffusion?
a)
when molecules move 
b)
when molecules move from a high concentration to a low.
c)
no movement 
d)
molecules move everywhere
8.
Where is there a high concentration of water?
a)
in the flower
b)
cannot be determined by picture.
c)
in the vase
d)
in the leaves
9.
Particles naturally flow from 
a)
high concentration to low concentration
b)
from low concentration to high concentration
10.

Plants perform photosynthesis through this organelle:

a)

chlorophyll

b)

chloroplasts

c)

mitochondria

d)

Golgi Apparatus

11.
What are the tiny structures that carry out jobs inside cells called?
a)
membranes
b)
nucleus
c)
organelles
d)
animalicules
12.

What type of cell is this?

a)

plant cell

b)

animal cell

c)

human cell

d)

bacteria cell

13.
Organisms that are classified as autotrophic are able to-
a)
be seen with the human eye
b)
move
c)
reproduce
d)
make their own food
14.
Cells are made up of
a)
atoms
b)
molecules
c)
organic compounds
d)
all of the above
15.
Which is not part of the digestive system?
a)
lungs
b)
esophagus
c)
stomach
d)
intestine
16.
What provides the energy during photosynthesis?
a)
dirt
b)
water
c)
sunlight
17.
All cells have
a)
DNA
b)
cells walls
c)
nuclei
d)
viruses
18.
What is the most basic unit of life?
a)
Tissue
b)
Cell
c)
Organ
d)
Organ System
19.
Besides energy from the sun, what else does a plant require to complete photosynthesis?
a)
Wind energy
b)
Oxygen and carbon dioxide
c)
Oxygen and water
d)
Water and carbon dioxide
20.

The physical expression of a trait is called the -

a)

genotype

b)

Punnett square

c)

chromosome

d)

Phenotype

21.

Wolves roam over large territories. What affect would building a new mall have on the wolves in that area?

a)

Increase population of wolves

b)

Stabilize population of wolves

c)

Reduce the wolves habitat

22.

Which is an abiotic change in ecosystem?

a)

A new plant moves into the region

b)

Rainfall amount increases

c)

A predator goes extinct

d)

Fish population decreases

23.

A species of bird eats ticks off the back of a zebra. The bird benefits by getting more food and the zebra benefits because the birds alert them of predators. This is -

a)

commensalism

b)

mutualism

c)

parasitism

d)

competition

24.

In this food web, which is a producer?

a)

Grasshopper

b)

Rabbit

c)

Hawk

d)

Grass

25.

Which scientist is credited for the discovery of evolution through natural selection?

a)

Rosalind Franklin

b)

Charles Darwin

c)

Robert Hooke

d)

Theodore Schwann

26.

A favorable trait that helps an organism survive and reproduce is called -

a)

predation

b)

camouflage

c)

a mutation

d)

an adaptation

27.

You are asked by your Science teacher to transfer the compound microscope. How will you handle the microscope?

a)

Hold the microscope on the arm with both hands.

b)

Hold the arm with one hand and swing it as you walk.

c)

Hold the eyepiece in one hand and the other hand in the stage.

d)

Hold the microscope on the arm with one hand and the other on the its base.

28.

The component of an ecosystem that refers to the non-living chemical and physical factors that help sustain life.

a)

Abionic

b)

Abiotic

c)

Bionic

d)

Biotic

29.

The chart describes some of the organisms that are common in Lake Erie. Which answer classifies the organisms into the correct feeding relationship?

a)

algae = producer, snail = consumer, and bacteria = decomposer

b)

algae = producer, snail = producer, and bacteria = consumer

c)

algae = decomposer, snail = producer, and bacteria = consumer

d)

algae = producer, snail = decomposer, and bacteria = producer

30.

A table containing the diet and population information about organisms within a river ecosystem is shown.

How would the population of fish change if the otter moves out of the ecosystem?

a)

The fish population would decrease.

b)

The fish population would increase.

c)

The fish population would stay the same.

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