Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?

What evidence did mendel find that supported his law of independent assortment? a. some traits are controlled by several different genes. b. a trait can be passed on from a parent to an offspring. c. most traits have a dominant form and a recessive form. d. different traits are passed on independently of each other.

Approximately what wavelength of light is best absorbed by chlorophyll a