Biology Midterm (21-22)

What statement is true about sexual reproduction?

• Does NOT require a mate

• Produces genetic variation

• Produces many offspring very quickly

• THIS IS NOT THE ANSWER

What limits Population Growth?

• birth rates increasing

• resources being used up

• natural selection taking place

• none of the above

How many antibiotics does this bacteria seem to be resistant to?

• 2

• 3

• All of them

• None of them

Based on the figure, which antibiotic inhibited the growth of the bacteria the most?

• A
• B
• C
• D

Over time, bacteria can become resistant to antibiotics. Why can this be considered harmful for humans?

• It is harmful to humans because all bacteria are bad and humans won’t be able to eat food with bacteria in it anymore.

• It is harmful to humans because when we get sick from bacteria that are resistant to antibiotics we won’t have anything to help make us better.

• It is harmful to humans because bacteria are only killed with antibiotics and if we don’t have antibiotics humans will get sick and die.

• No antibiotic is effective because bacteria are usually resistant to any antibiotic that has been used before.

People are increasing the rate at which bacteria populations are acquiring antibiotic resistance by:

• taking antibiotics only when they need them

• putting antibiotics into our food and environment

• not sharing antibiotics with others

Which term refers to the process by which individuals that are better suited to the environment survive and reproduce therefore passing down their genes to their offspring? 

• Evolution 
• Variation 
• Adaptation
• Natural Selection 

Genetic differences between organisms of the same species

• Variation
• Adaptation
• Behavior
• Environment

Which species’ DNA is most similar to the DNA of the toothed whale? 

• Hippopotamus 
• Baleen Whale
• Grazing Mammals
• Camels

Two organisms that are closely related would have

• very similar DNA sequence
• exactly the same DNA sequences
• no proteins in common
• completely different DNA sequence