What is upwelling and why is it important to the marine ecosystem?

Compare and contrast nutrient limitation in soil vs. nutrient limitation in aquatic ecosystems

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

What is the correct term for an area of rotating currents in an ocean? when ocean currents combine, they create an area of rotating currents called an