Choose all the answers that apply.

check all the statements that are correct.

a. an independent variable is the variable which is changed.

b. the dependent variable is the variable which is observed as a result of the change.

c. disproving a hypothesis means it cannot be tested again.

d. experiments are usually published to communicate findings to the scientific community.

e. if data can be repeated, it cannot be trusted.

The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?