Which of the following is expected to happen to a species' population when resources are stable over a long period of time and the species have reached carrying capacity?(1 point)

Responses

The population will increase.
The population will increase.

The population will decrease.
The population will decrease.

The population will stay the same.
The population will stay the same.

The population will die out.
Which factor may increase a rabbit population?(1 point)
Responses

decrease in space
decrease in space

decrease in predators
decrease in predators

decrease in food
decrease in food

decrease in temperature
A group of mountain gorillas has 10 members. How big is the group after 4 females emigrate, 2 females immigrate, 2 gorillas are born, and a male dies?(1 point)
Responses

1
1

13
13

9
9

7
Predator/prey interactions regulate the populations of both groups. Which chain of events follows from an increase in predators?(1 point)
Responses

increase in prey → decrease in predators → decrease in prey
increase in prey → decrease in predators → decrease in prey

increase in prey → increase in predators → decrease in prey
increase in prey → increase in predators → decrease in prey

decrease in prey → increase in predators → decrease in prey
decrease in prey → increase in predators → decrease in prey

decrease in prey → decrease in predators → increase in prey

1 answer

Here are the expected answers for your questions:

  1. Which of the following is expected to happen to a species' population when resources are stable over a long period of time and the species have reached carrying capacity?

    • The population will stay the same.
  2. Which factor may increase a rabbit population?

    • Decrease in predators.
  3. A group of mountain gorillas has 10 members. How big is the group after 4 females emigrate, 2 females immigrate, 2 gorillas are born, and a male dies?

    • Starting with 10 members:
      • 4 females emigrate = 10 - 4 = 6
      • 2 females immigrate = 6 + 2 = 8
      • 2 gorillas are born = 8 + 2 = 10
      • 1 male dies = 10 - 1 = 9
    • The answer is 9.
  4. Predator/prey interactions regulate the populations of both groups. Which chain of events follows from an increase in predators?

    • Increase in prey → increase in predators → decrease in prey.

Let me know if you need any further explanations or assistance!