A plant cell has lost too much water due to evaporation by the sun. It needs more water from other cells. What structure would allow the water to be transferred?

When should a bar graph be used? a. when there is no independent variable. b. when the independent variable is continuous and does not show a relationship to the dependent variable. c. when the independent variable is continuous and shows a causal link to the dependent variable. d. when the independent variable is composed of categories and does not show a relationship.

The study of interaction between living organisms and their enviroment is called (a) phytogeography (b) ecology (c) phytosociology (d) ecosystem

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.