
LE Review
Authored by Betsy Leibu
Science
9th Grade
NGSS covered
Used 1+ times

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18 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Genetic recombination, production of more offspring than can survive, and struggling with the challenges of the environment are all concepts associated with
natural selection
mitotic division
selective breeding
genetic engineering
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A rich variety of genetic material in an ecosystem will
reduce the biodiversity of the ecosystem
decrease the carrying capacity of the ecosystem
reduce the likelihood of future medical discoveries
increase the chances that some organisms will survive change
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A single pair of goldfish in an aquarium produced a large number of offspring. These offspring showed variations in body shape and coloration. The most likely explanation for these variations is that the
offspring were adapting to different environments
offspring were produced from different combinations of genes
parent fish had not been exposed to mutagenic agents
parent fish had not reproduced sexually
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Natural selection produces most quickly in
species with short reproductive cycles
individual pathogens killed by antibiotics
complex multicellular organisms
individuals that produce a small number of offspring
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which sequence best represents the levels of organization in a paramecium, a single-celled organism?
cells —› tissues —› organs —› organ systems —› organism
organelles —› organ systems —› organism
cells —› organs —› organ systems —› organism
organelles —› organism
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The human immune system fights infections by releasing
ATPs
antibiotics
antibodies
antigens
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the difference between biotic and abiotic?
Biotic factors are consumers, abiotic factors are producers
Biotic factors are living, abiotic factors are non-living.
Abiotic factors are living, biotic factors are non-living.
There is no difference
Tags
NGSS.MS-LS2-3
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