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7th Grade Final Exam
Test Description: General
Instructions: Answer all questions to get your test result.
1) An organism's habitat must provide all of the following except
A
predators
B
food
C
shelter
D
water
2) To produce their own food, algae and plants use the abiotic factors sunlight, carbon dioxide, and
A
bacteria
B
salt
C
soil
D
water
3) Cool air tends to be
A
more dense and flow under warm air
B
mix easily with warm air masses
C
less dense and flow over warm air
D
be lifted up by more dense warm air
4) What does the notation TT mean to geneticists?
A
two dominant alleles
B
two recessive alleles
C
no alleles
D
two homozygous alleles
5) A mutation is
A
any change in the phenotype of a cell
B
any change which hurts an organism
C
any change which is helpful to an organism
D
any change in a gene or chromosome
6) The behaviors and physical characteristics of a species that allow them to survive successfully in a changing ecosystem are called
A
abiotic resources
B
biotic resources
C
adaptations
D
limiting factors
7) A group of land ecosystems with similar climates and organisms is called a(n)
A
ecosystem
B
biosphere
C
biome
D
tundra
8) A carrier is a person who has
A
3 dominant alleles
B
one recessive and one dominant allele for a trait
C
two recessive alleles
D
two dominant alleles
9) Consumers that eat both plants and animals are called
A
scavengers
B
herbivores
C
omnivores
D
carnivores
10) The greenhouse effect is
A
the absorption of energy by clouds
B
the reflection of solar energy into the atmosphere
C
the process by which gases hold heat in the atmosphere
D
a gradual increase in the temperature of the atmosphere
*select an answer for all questions
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