Question

dataset to use
season (time of year) rainfall (mm) grass growth (cm) predator sightings wildebeest numbers in area
wet (dec–march) 600 30 low high
dry (april–june) 100 5 medium decreasing
dry peak (july–aug) 50 2 high low
return wet (sept–nov) 500 25 medium increasing
part 2: data analysis

1. which of the following describes wildebeest migration?

a. they move randomly with no pattern
b. they follow a yearly cycle based on rainfall and food growth
c. they only move when predators attack
d. they migrate once and never return

1. in which season is grass growth the highest?

a. wet (dec–march)
b. dry (april–june)
c. dry peak (july–aug)
d. return wet (sept–nov)

1. what happens to wildebeest numbers in an area when rainfall is very low?

a. they increase
b. they decrease
c. they stay the same
d. they disappear completely

Explanation:

For question 2, the data shows wildebeest numbers vary with rainfall and grass - growth seasons, indicating a yearly cycle. For question 3, by comparing grass - growth values in different seasons, the wet season has the highest value. For question 4, when rainfall is very low (Dry Peak with 50mm), wildebeest numbers are low, so they decrease.

Answer:

1. B. They follow a yearly cycle based on rainfall and food growth
2. A. Wet (Dec - March)
3. B. They decrease