Question

The process by which variations that give an advantage become more common in a population is called _____.(1 point)
Responses

a sexual reproduction
a sexual reproduction

physics
physics

harmful mutations
harmful mutations

natural selection
Answer
Over time, variations in species that give an advantage ...(1 point)
Responses

become less common in the population.
become less common in the population.

can limit selective pressures.
can limit selective pressures.

can limit the number of organisms.
can limit the number of organisms.

become more common.
Answer
How would reducing low growing plants from an area impact the # of long and short neck tortoises?(1 point)
Responses

The # of tortoises with short necks would increase.
The # of tortoises with short necks would increase.

The # of tortoises with long necks would decrease.
The # of tortoises with long necks would decrease.

The # of tortoises with long necks would increase.
The # of tortoises with long necks would increase.

There would be no change to the # of tortoises.
There would be no change to the # of tortoises.
Question 4
A
Answer
A drought hits a wetland ecosystem, leading to a decline in fish, but not insects. What is the main selective pressure?(1 point)
Responses

leg length of insects
leg length of insects

drought
drought

insect population
insect population

fish population
Answer
The length of winter decreased in an ecosystem where white and brown rabbits live. Which scenario is most likely?(1 point)
Responses

The # of brown rabbits declines.
The # of brown rabbits declines.

The # of white rabbits declines.
The # of white rabbits declines.

The # of white and brown rabbits increased.
The # of white and brown rabbits increased.

The # of white and brown rabbits declined.
Answered by GPT 3.5
natural selection
Answered by GPT 3.5
become more common.
Answered by GPT 3.5
The # of tortoises with long necks would increase.
Answered by GPT 3.5
fish population
Answered by GPT 3.5
The # of brown rabbits declines.