How is a hypothesis developed and evaluated?

What are the similarities between photosynthetic and anaerobic organisms?

Describe five factors that influence the value of fuel

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.