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Evolution And Genetics Review Part 2
Test Description: Evolution and genetics Review (Unit 4)
Instructions: Answer all questions to get your test result.
1) If global warming increases, which animal is most likely to be selected against survival?
A
Grizzly bear
B
Polar bear
C
a monkey
2) How do populations of asexual organisms acquire new genetic traits?
A
By deleting cells that no longer function
B
By mating with organisms of other species
C
By experiencing mutations over several generations
D
By consuming genetic material from other species
3) Due to a genetic variation, a cheetah is unable to run as fast as other normal cheetahs. Which would be the most important for the survival of the cheetah?
A
Competition for prey
B
competition for mates
C
competitions for shelter
4) Which characteristic of organisms allows them to adapt to problems in their environment?
A
genetic drift
B
genetic isolation
C
genetic variation
5) Which best explains the relationship between evolution and natural selection?
A
Evolution causes natural selection
B
Natural selection prevents evolution
C
Natural selection is one aspect of evolution
D
Evolution prevents natural selection
6) Which adaptation has occurred due to genetic variation allowing some species to seem invisible to predators?
A
ability to make loud noises
B
camouflage
C
exceptional vision
7) Which best explains how environment and genetic variation contribute to the difference in a species physical appearance?
A
The climate becomes colder and a species adapts to the change
B
The climate becomes colder and a species becomes extinct
C
The climate becomes colder and a new species develops
8) Which is the best hypothesis for the extinction of the dinosaurs at the end of the Cretaceous period?
A
Mammals evolved and killed the dinosaurs
B
The climate changed and the dinosaurs could not adapt
C
Humans destroyed all the dinosaurs
D
The dinosaurs killed each other
9) Why are fat layers and thick fur advantageous for polar bears?
A
they help the bear catch more food
B
They help the bear get rid of excess body heat more easily
C
They allow the bears to run and swim faster to escape predators
D
They insulate the bears and allow them to blend in with their environment
10) A new predator moves into an area with a population of rabbits. The rabbits with longer back legs have an advantage because they can run faster and escape the predator. Which will be the most likely effect on the rabbit population
A
The rabbit population will produce fewer offspring
B
The rabbits with shorter back legs will learn to hide
C
The future generations of rabbits will have longer legs.
D
The population will become extinct due to stress
11) Which is the best sign of the ability of an organism to survive and reproduce in evolutionary biology?
A
The number of offspring that survive to reproduce
B
The behavior of the offspring
C
The physical traits of the offspring
12) Why is upwelling an important process in a marine ecosystem?
A
Upwelling decreases the temperature differences between different layers of ocean water
B
Upwelling cycles nutrients from decomposers along the ocean floor to producers in surface waters
C
Upwelling replaces sand and gravel on beaches lost as the result of wave and tidal action
D
Upwelling returns salt to the surface from the benthic zone as part of the global conveyor belt current
13) Which is an example of parasitism
A
human and tapeworm
B
cat and mouse
C
caterpillar and butterfly
D
tadpole and frog
*select an answer for all questions
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