Puppies born too large experience difficulties in birthing and tend to have respiratory and other problems. Puppies born too small often can’t compete with their siblings for their mother’s milk. Thus, puppies born not too large or too small have a survival advantage.

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Question 1

2.5 out of 2.5 points

Which individual proposed the same idea as Darwin after studying the wildlife in the Amazon basin?

·         Question 2

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The time it takes for half of a radioisotope’s atom to decay is called the

·         Question 3

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Which of the following factors is the only one that influences radioactive decay?

·         Question 4

2.5 out of 2.5 points

The theory of continental movement is called

·         Question 5

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Similar body parts that reflect shared ancestry are known as

·         Question 6

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What is true about homologous structures?

·         Question 7

2.5 out of 2.5 points

What event could increase the frequency of a mutation in a population over time?

·         Question 8

2.5 out of 2.5 points

____ changes the DNA but has no impact upon the individual.

·         Question 9

2.5 out of 2.5 points

Puppies born too large experience difficulties in birthing and tend to have respiratory and other problems. Puppies born too small often can’t compete with their siblings for their mother’s milk. Thus, puppies born not too large or too small have a survival advantage. This is an example of ___ selection.

·         Question 10

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With ____ selection(s), the allele frequency will shift in a consistent direction.

·         Question 11

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When individuals choose mates with a particular trait they desire it is called

·         Question 12

2.5 out of 2.5 points

Over evolutionary time, flowering plants have evolved colors, odors, and nectar that attract pollinating insects and the insects have evolved mechanisms that detect the changes in plants and to better collect pollen. This is an example of