A factors or conditions within an experiment that is kept the same is called the a. control variable

b. independent variable

c. dependent variable

d. the hypothesis

Which events are likely to be catastrophic to an ecosystem? select the three correct answers.a-hurricane.b-steady population growth.c-seasonal flooding.d-introducing of an aggressive invasive species.e-tsunami.

What was photo 51 with rosalind franklin?

Ineed to know why d is the correct answer asap