AnswersRKAA- Second Semester Biology 0.5 NewProbability of Inheritance

The History of Evolutionary Theory Answers

7 verified answers
1
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The theory of evolution states that all life is related and that organisms have become more complex over time. Which phrase describes a theory?

A
an educated guess
B
a fact that has been proven
C
the conclusion to a long-lasting debate
D
the best explanation for a set of data and observations
2
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What does the theory of evolution contribute to conservation biology?

A
It helps scientists understand how populations and species are related, and this knowledge can be used to help these populations and species survive.
B
It helps scientists understand how populations and species are related, and this knowledge can be used to capture and breed the fittest organisms in these populations and species.
C
It helps scientists understand how populations and species react to changes in their environment, and this knowledge can be used to help these populations and species survive.
D
It helps scientists understand how populations and species react to changes in their environment, and this knowledge can be used to capture and breed the fittest organisms in these populations and species.
3

According to natural selection, individuals that tend to survive are those that have which of the following?

A
the ability to quickly produce the most offspring
B
the largest and strongest body structures
C
the genetic variations that are best suited for their environment
D
the longest legs and fastest running speeds
4

A male tree frog migrates to a new habitat with little ground vegetation and many tall trees. Jumping is the safest way for the frog to move from tree to tree. Because of the long distance between trees, the frog spreads its fingers and toes like a parachute to soften its landing. Over time, the webbing between the frog's fingers and toes stretches and expands to act more efficiently. The frog eventually mates with a female of the same species. Based on this information, which claim can be made?

A
All the offspring will have expanded webbing.
B
Some of the offspring will have expanded webbing.
C
All the offspring will have normal webbing.
D
The male offspring will have expanded webbing.
5

Which of the following defines evolution?

A
a change in environmental conditions
B
a change in an animal's physical traits
C
a change in a population's gene pool
D
a change in an individual's genetic makeup
6

Which best describes evolutionary theory?

A
It is based on the idea that all life is related.
B
It states that organisms have become less complex over time.
C
It is not supported by observation or experimentation.
D
It has been disproved several times since it was first proposed.
7

Which scientist is matched with his contribution to evolutionary theory?

A
Jean-Baptiste Lamarck—population growth
B
Charles Darwin—inheritance of acquired traits
C
Thomas Malthus—relationship of all living things
D
Erasmus Darwin—competition and sexual selection as an impetus for change

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