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Unit 5 - Key Concepts
Test Description: This is a combination of unit 5 vocabulary and key concepts for 7th grade science.
Instructions: Answer all questions to get your test result.
1) A part or organ, such as an arm, leg, tail, or fin that is joined to the axis or trunk of a body.
A
Camouflage
B
Hibernation
C
Estivation
D
Appendages
2) An animal's color/shape that protects it from predators
A
Camouflage
B
Evolution
C
Migration
D
Mutation
3) Changes in behavior or physical structure of an organism to become more suited to an environment.
A
Physiology
B
Appendages
C
Selective Breeding
D
Adaptation
4) A key used to identify a plant or animal
A
Genetic Variation
B
Dichotomous Key
C
House Key
D
Hibernation
5) A temporary state of inactivity during a time that the animal is usually active.
A
Physiology
B
Estivation
C
Migration
D
Appendages
6) The change in genetic composition of a population over time. May be caused by natural selection, inbreeding, hybridization, or mutation.
A
Selective Breeding
B
Evolution
C
Mutation
D
Dichotomous Key
7) Differences in a population’s genetics.
A
Mutation
B
Natural Selection
C
Genetic variation
D
Appendages
8) The stopping or slowing of activity during winter; especially slowing of metabolism in some animals.
A
Camouflage
B
Hibernation
C
Migration
D
Mutation
9) Animals moving from one place to another for food or breeding.
A
Genetic Variation
B
Estivation
C
Evolution
D
Migration
10) A permanent heritable change in an organism's genetics
A
Selective Breeding
B
Mutation
C
Physiology
D
Migration
11) Organisms survive to reproduce and pass on their genes - improves the species over time.
A
Mutation
B
Evolution
C
Natural selection
D
Selective Breeding
12) A branch of biology that deals with the functions, mechanisms, and activities of organisms at the cellular or organ system level.
A
Meteorology
B
Physiology
C
Geology
D
Chemistry
13) Humans selecting and breeding organisms for desired traits
A
Dichotomous Key
B
Natural Selection
C
Selective breeding
D
Hibernation
14) What adaptation do animals such as birds have that allows them to fly?
A
Lite weight hollow bones
B
Mini-jet engines
C
They are incredibly strong
D
They have sacs of helium in them like balloons
15) What adaptations to organisms such as fish have that allow them to survive underwater?
A
Gills that absorb oxygen from the water.
B
Fish do not have to breathe
C
Fish somehow break the O from H2O and absorb that
D
Fish can hold their breath a really long time
16) Animals burrow into the ground in the desert because....
A
They don't know how to build houses
B
It provides a place to hide and cooler temperatures
C
.. they are bored
D
Animals do not burrow in the desert
17) How do some animals in the desert store water?
A
Water is stored in big water sacs in the body
B
No animals can store water
C
Water is store in water sacs on the outside of the body
D
Water is is stored in the fat of the body
18) Animals that are active at night to avoid the daytime heat are ...
A
Bipedal
B
Nocturnal
C
Paternal
D
Diurnal
19) Animals like the sea turtle produce a huge number of offspring because...
A
There is no good reason
B
So that there will be more competition for the parent
C
So they can take over the world
D
Only the best adapted organisms will survive
20) The greater the genetic variation .....
A
..the greater chance that organisms can adapt to their environment
B
.. the greater chance of extinction
C
..the lower the sustainability
D
.. the less chance for beneficial mutations
*select an answer for all questions
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