Which direction do molecules move during facilitated diffusion?

A. low to high concentration

B. high to low concentration

C. against the concentration gradient

Which 2 biomes have the least precipitation? Tropical rain forest & temperate grassland. Savanna & tropical rain forest. Tundra & desert. Boreal forest & temperate forest.

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What effect would constriction of the blood vessels have on the body? A) decreased blood volume resulting in decrease heart rate B) decreased blood pressure resulting in light headedness C) increase blood pressure resulting in risk of heart of

Reactants undergo chemical reaction to form products. This chemical equation represents one such reaction. The coefficient for one of the reactants or products is incorrect. Which part of the chemical equation is incorrect?

Which of the following consists of group of species living together without considering abiotic factors A. a community B. a population C. the biosphere D. an ecosystem

Under what circumstances does membrane transport always require energy?

What is one disadvantage of using plasma gasification to detoxify hazardous waste?

Euglena use which structure for movement? A. cilia B. flagella C. pseudopods D. they do not move

1. What is a reproductive process in which a cell's genetic information is duplicated and then divided to produce a single identical daughter cell from an outgrowth of a larger parent cell? A. production of spores B. budding C. binary fission D.

True or false? biologists studied the effects of forest fragmentation by calculating the difference between the amount of plant biomass in the edges of forest fragments and the interiors of unfragmented forest.