The occupation of different niches on the open plains and woodlands of Africa by the zebras and the wildebeests is a result of niche partitioning. The zebras and the wildebeests in a common niche would compete for food, water, shelter, and space. This competition would affect the population growth of the two species by negatively affecting their reproductive capabilities. Thus, in the same habitat, the two species choose to occupy two different niches such that the competition between them is minimised. Hence they end up in separate niches.
Answer:
Hypothesis, controlled conditions, "if then" statement, scientific investigation, observation.
Explanation:
Hypothesis: An idea proposed for an argument to be tested if it's true.
Controlled Conditions: An experiment that doesn't manipulate the independent variable.
If then statements: These sentences present situations and their outcomes.
Scientific Investigation: A plan for asking questions and testing possible answers.
Observation: Using one of the senses (hearing, seeing, tasting, smell, touching) or measurements to gather data.
Let me know if you need more!