Question

1. Which of the following must result in a decrease in a population
A. Increased death rate and increased immigration
B. Decreased birth rate and increase emigration
C. Increased birth rate and increase immigration
D. Decreased death rate and decreased emigration
2. Suppose a species of beetles feeds on grass in a grassland ecosystem. Toad prey on the beetle. In which of the following scenarios would a predator become a limiting factor for the beetle population?
A) A drought reduces the toad population
B An influx of soil nutrients results in increased grass growth
C. Hawk kill toad

Answer 1

are you in connections academy

Answer 2

For the first one i would do A. for the second one i would do either A or C.