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WorksheetsScience Review
Total questions: 15
Worksheet time: 10mins
Name
Class
Date
1.
Which structure is found in plant cell but not in animal cells?
a)
mitochondrion
b)
nucleus
c)
chloroplast
d)
cell membrane
2.
Which organelle is correctly matched with its function?
a)
mitochondria - determines all cell activities
b)
cytoplasm - separates the cell from its surroundings
c)
chloroplasts - release energy from food
d)
vacuoles - store food, wastes, or water
3.
Which of the following is formed when a group of similar cells work together?
a)
tissue
b)
organ
c)
organ system
d)
neuron
4.
Which of the following best describes the leaf of a plant?
a)
a cell
b)
an organ
c)
a tissue
d)
an organ system
5.
Which of the following animals completes the food chain?
grass -- __________ --bobcat
grass -- __________ --bobcat
a)
a fish
b)
a bear
c)
a tiger
d)
a rabbit
6.
Which of the following is an example of an adaptation that would most likely help individuals in a fish population survive when a new predator is introduced?
a)
their fin shape allows them to swim fast
b)
they are very small
c)
they are brightly colored
d)
their digestive system allows them to eat crustaceans
7.
which statement is true about the spread of disease?
a)
only bacteria cause disease
b)
not all bacteria cause disease
c)
there is no way to prevent bacteria from causing disease
d)
disease can only be contracted through the air
8.
Plants and animals that have been introduced into an environment that is outside their native range are called__________.
a)
endangered species
b)
unregulated species
c)
nonnative species
d)
threatened species
9.
The purpose of an egg yolk is to _______
a)
feed the growing embryo
b)
keep the embryo wet
c)
protect the growing embyo
d)
grow into a second embryo
10.
Why does coastal Louisiana have many wetlands?
a)
Plankton grows well in Louisiana
b)
Louisiana has more precipitation than other places
c)
Louisiana has only saltwater ecosystems
d)
Louisiana is located where the Mississippi River and Guld of Mexico meet.
11.
What is the purpose of pasteurization?
a)
to destroy bacteria in certain foods
b)
to make different types of liquids
c)
to add antibiotics to organic foods
d)
to make a vaccine that can fight infection
12.
Why are holes in Earth's ozone layer is a problem?
a)
they add pollution to the air
b)
they enlarge Earth's atmosphere
c)
they allow dangerous rays from the Sun to reach Earth's atmosphere
d)
they allow dangerous chemicals to escape into the atmosphere
13.
Sarah was asked to write a report on two plants. One plant must be a vascular and he other plant must be non-vascular. Which of the following plants can Sarah write about?
a)
moss and a flowering plant
b)
a fern and a flowering plant
c)
liverwort and hornwort
d)
pine tree and a fern
14.
What is the basic unit of living thing?
a)
an atom
b)
a cell
c)
an organelle
d)
an organism
15.
What happens during cellular respiration?
a)
Photosynthesis is regulated
b)
Energy is released
c)
Sugar is made
d)
Oxygen is released
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