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Life Science

Total questions: 50

Worksheet time: 49mins

Name
Class
Date
1.

Is made of bones, tendons, and ligaments; provides a solid framework for the body

a)

skeletal system

b)

digestive system

c)

excretory system

d)

respiratory system

2.

A chemical that kills disease - causing bacteria

a)

antiboitics

b)

cough syrup

c)

pasteurization

d)

pathogen

3.

The process of heating foods to high temperatures to slow the growth of bacteria.

a)

pasteurization

b)

vaccine

c)

pathogen

d)

nervous system

4.

The organ system consisting of the heart and blood vessels that move through the body.

a)

circulatory system

b)

nervous system

c)

muscular system

d)

respiratory system

5.

It is the smallest part of a living thing

a)

cell

b)

nucleus

c)

organ

d)

tissues

6.

A group of tissues that work together to perform a specific function

a)

organ

b)

organ system

c)

cells

d)

organism

7.

Helps scientist identify, study, group, and name organisms

a)

classification

b)

vertebrate

c)

kingdom

d)

monotreme

8.

Is an animal with a backbone

a)

vertebrate

b)

invertebrate

9.

Plants that contains tubes or vessels that run up and down the body of the plant

a)

vascular

b)

nonvascular

10.
Which of the following statements is true for all living things (organisms)?
a)
All living things have organs
b)
All living things produce their own food through photosynthesis
c)
All living things are made of one or more cells
d)
All living things are made of more than one cell
11.
Which of the following shows biological systems from least to most complex?
a)
Cells, tissue, organ, organ system
b)
Tissue, cells, organ, organ system
c)
Organ system, cells, organism, tissue
d)
Organ system, organ, tissue
12.
Which of the following is the best description of an organ system?
a)
The human heart and lungs
b)
A group of similar cells working together to complete a specific task
c)
The structure of an organ
d)
A group of organs working together to complete a specific task
13.
What is the function of the nucleus within a cell?
a)
Containing a cell's DNA and acting as the cell's "brain"
b)
Manufacturing proteins
c)
Completing photosynthesis
d)
Storage space
14.
Where do plants receive the energy necessary to carry out photosynthesis?
a)
Heat from the sun
b)
Gamma radiation
c)
Light from the sun
d)
Wind
15.
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
16.
What happens to the energy that plants receive from the sun during photosynthesis?
a)
It is converted to chemical energy and stored for later use
b)
It is converted to kinetic energy
c)
It is converted to gravitational potential energy
d)
It is converted to chemical energy but not used 
17.
What is the main advantage of asexual reproduction?
a)
Offspring are produced by two parents, making reproduction more difficult.
b)
Offspring contain genetic material from two parents.
c)
Offspring are produced by one parent, making reproduction easier.
d)
Offspring are only plants.
18.

Which of these is an inherited trait of a young giraffe?

a)

that it eats about 65 pounds of food a day

b)

that it is not afraid of people

c)

that it begs for food

d)

that it has long eyelashes

19.

Which of these is a learned behavior of a raccoon?

a)

getting food out of a garbage can

b)

eating plants, fruits, and small mammals

c)

having a long, striped tail

d)

having sharp claws

20.

Which of these structures would be most helpful for keeping a plant's seeds safe from predators?

a)

star-shaped leaves

b)

fruit hidden in prickly spheres

c)

trees growing rapidly

d)

seeds can be used to make medicine

21.

What is the function of shallow roots?

a)

to collect water

b)

attract insects

c)

conserve water

22.

What is the function of waxy coated leaves?

a)

collect water

b)

conserve water

c)

attract insects

23.

What is the function of sweet smelling flowers?

a)

collect water

b)

conserve water

c)

attract insects

24.
A decomposer?
a)
Eats dead plants or animals and breaks down to put nutrients in the soil
b)
Eats plants or other animals for food
c)
Makes its own food
d)
Machine that gathers trash
25.
This animal is an .......
a)
Producer
b)
Consumer
c)
Decomposer
26.

How is a plant cell different from an animal cell?

a)

Animals have cell walls, chlorolphyll, and produce their own food.

b)

Plant cells are single cell jobs.

c)

Plants cells are fungi.

d)

Plants have cell walls, chlorolphyll, and produce their own food.

27.

Define ecosystem.

a)

All living and non living things in an environment.

b)

Only living things that grow old and decay.

c)

The same species in the same place at the same time.

d)

All the population in the same area.

28.
Animal and Plant cells are both this type of cell.
a)
Eukaryote
b)
Prokaryote
29.
This organelle is in both plants and animals. It is a barrier between the cell and the environment.  It controls what goes in and out of a cell.
a)
cell wall
b)
cell membrane
c)
cell organelles
d)
mitochondria
30.
Bacteria cells are this type of cell.
a)
Eukaryote
b)
Prokaryote
31.
This organelle is in all eukaryotic cells. It is the control center of the cell because it holds the DNA.
a)
Mitochondria
b)
Nucleus
c)
Chloroplasts
d)
Ribosomes
32.
Plants perform photosynthesis through this organelle.  It captures energy from the sun and uses it to produce food for the cell.
a)
Chlorophyll
b)
Chloroplasts
c)
Mitochondria
d)
Nucleus
33.
This structure is only in plant cells. It is outside of the cell membrane and adds more support/structure to the plant.
a)
Cell membrane
b)
Cell Nucleus
c)
Cell Wall
d)
Endoplasmic Reticulum
34.
How are eukaryotes different from prokaryotes?
a)
They aren't different, except the spelling.
b)
Eukaryotes are only single celled organisms.
c)
Eukaryotes have a NUCLEUS, prokaryotes do NOT!
d)
Prokaryotes have a NUCLEUS, eukaryotes do NOT!
35.
How many parents are needed for asexual reproduction?
a)
0
b)
3
c)
2
d)
1
36.
How much DNA does a parent give to it's offspring during sexual reproduction.
a)
all
b)
none
c)
half
d)
one-fourth
37.
How much DNA does a parent give to offspring in asexual reproduction. 
a)
half
b)
all
c)
none
d)
one-fourth
38.
What is the job of mitochondria in a cell.
a)
make ribosomes
b)
control the cell
c)
produce energy
d)
make protien
39.
W=white hair
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?
a)
none
b)
3/4
c)
1/2
d)
all
40.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
41.
One set of instructions for an inherited trait is called a _______________.
a)
heredity
b)
chromosome
c)
trait
d)
gene
42.
A characteristic that an organism can pass on to its offspring through its genes
a)
protein
b)
trait
c)
DNA
d)
gene
43.
A strand of DNA that carries genes in the nucleus of  a cell is called a _________________.
a)
chromosome
b)
allele
c)
copy
d)
chloroplast
44.
Name this protist?
a)
Euglena 
b)
Amoeba 
c)
Paramecium 
d)
Volvox
45.
Fission, budding, and regeneration are all examples of what kind of reproduction? 
a)
Asexual Reproduction 
b)
Sexual Reproduction 
46.
How does this protist move? 
a)
Pseudopods 
b)
Cilia 
c)
Flagellum
47.
How does this protist move? 
a)
Flagellum
b)
Cilia 
c)
Pseudopods
48.
How does this protist move? 
a)
Cilia
b)
Pseudopods
c)
Flagellum 
49.
A protist that can not make its own food is called what? 
a)
Autotroph
b)
Heterotroph 
50.
A protist that can make its own food is called what? 
a)
Heterotroph
b)
Autotroph

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