The tree of life is a metaphor for what idea?

A: we need water and sunlight to survive

B: we have multiple species

C: we are old

D: we came from a common ancestor

What are methods to manage impacts on soil and water?

What describes the principle of superposition

What is a community of living things together with their environment called? A. retrosystem B. ecosystem C. exosphere D. biosphere

A couple's genetic counselor shows them magnified photographs of each parent's chromosomes arranged on a chart according to size and structure. what is this chart called?

Suppose that out of 10 trees planted in a yard, only five survive. What kind of hypothesis could you make about this observation or event? Remember that a hypothesis need to have a certain format

What aspects of abundance do population density and population size measure, respectively?

What's an example of a multicellular producer

Are microorganisms alive and do microorganisms affect humans

Which statement best describes the process of chemiosmosis and the direct result of its occurrence? A. The choices are Hydrogen ions flow from the thylakoid down a concentration gradient through ATP synthase channels into the stroma.

Describe how human activities threaten polar bears in the arctic