19.6k views
22 votes
PLSSSSS I NEED THIS QUESTION ANSWERED 50 POINTTSSSSSS

The populations of zebras and wildebeests decrease when the grasses decrease. They also slowly increase when the rainy season brings new grasses to eat. This represents a

climax community
biological surplus
peak phenomenon
sigmoid phenomenon

User Protoproto
by
3.6k points

2 Answers

3 votes

sigmoid phenomenon! its super cool. like, i took the test yo!

User Anca
by
3.8k points
7 votes

Answer:

The correct option is "D", the sigmoid phenomenon because Populations that exhibit the sigmoid pattern increase rapidly while food and habitat are abundant, and then slow down as regulatory factors such as lower birth rate and reduced food availability come into play. As the rate of population growth slows down to zero, the population reaches a fairly stable level.

User UncleZeiv
by
4.1k points