A new species of fish (Species A) colonized a pond and scientists gather data to study the growth of this fish population over time. To gather this data, the scientists record the number of fish in a specific area of the lake over several months. The following is the data they collected.

During the third month of observation, the scientists notice that numbers of a different fish species in the lake are changing. The decide to record the number of these fish, as well. The following is the data they collected for Species B.

Which statement describes the change in the population of Species A during this time?

(1 point)
Responses

Its numbers increase exponentially
Its numbers increase exponentially

Its numbers grow rapidly then level off
Its numbers grow rapidly then level off

Its numbers decline steadily
Its numbers decline steadily

Its numbers grow at a constant rate
Its numbers grow at a constant rate
Question 2
In what month were the populations of Species A and Species B most similar?(1 point)
Responses

Month 9
Month 9

Month 4
Month 4

Month 1
Month 1

Month 6
Month 6
Question 3
During what month did the numbers of Species A change most rapidly?(1 point)
Responses

Month 1
Month 1

Month 4
Month 4

Month 7
Month 7

Month 10
Month 10
Question 4
What is the most likely outcome for how the population of Species A will change after month 12?(1 point)
Responses

It will increase exponentially
It will increase exponentially

It will decline rapidly
It will decline rapidly

There is no way to predict
There is no way to predict

It will stay approximately the same
It will stay approximately the same
Question 5
What is the likely explanation for the change in these populations during this observation period, as illustrated by the graphs?(1 point)
Responses

The 2 fish species are working together to become more successful
The 2 fish species are working together to become more successful

Species A is outcompeting Species B for resources and food
Species A is outcompeting Species B for resources and food

Species B is outcompeting Species A for resources and food
Species B is outcompeting Species A for resources and food

Neither population has an effect on the other
Neither population has an effect on the other
Skip to navigation

1 answer

To answer the questions based on the provided information regarding the populations of Species A and Species B, we can deduce the most suitable answers based on typical population dynamics:

Question 1

Which statement describes the change in the population of Species A during this time?

  • The statements provided suggest different growth patterns. If the population of Species A rapidly increases and then stabilizes or levels off, it is indicative of logistic growth, which is common in constrained environments. Without the actual data, we can infer that "Its numbers grow rapidly then level off" is likely the correct answer.

Response: Its numbers grow rapidly then level off.


Question 2

In what month were the populations of Species A and Species B most similar?

  • While we don't have the specific data, typically, species populations fluctuate. Without the data, a logical assumption might be made that peaks or troughs in growth for both species can occur simultaneously, often in mid-observational months.

Response: Month 6 (assuming mid-period similarity based on typical growth patterns).


Question 3

During what month did the numbers of Species A change most rapidly?

  • Usually, initial months after introduction or significant environmental changes lead to rapid population growth. If Month 1 indicated a significant population increase based on the pattern, it might be the correct choice.

Response: Month 1 (assuming initial rapid growth).


Question 4

What is the most likely outcome for how the population of Species A will change after month 12?

  • If Species A's population has been growing and stabilizing, it’s reasonable to suggest that it may continue to maintain itself rather than exponentially grow or rapidly decline, especially if resources are being shared.

Response: It will stay approximately the same.


Question 5

What is the likely explanation for the change in these populations during this observation period, as illustrated by the graphs?

  • In typical ecological dynamics, if one species thrives (Species A) while another declines (Species B), it is often indicative of competitive exclusion where Species A is likely outcompeting Species B for resources.

Response: Species A is outcompeting Species B for resources and food.


Overall, the suggested answers align with common ecological principles, assuming typical population trends in response to environmental resources and competition. Actual data would be needed for definitive conclusions.