Which of the following would occur without gravity? A
The amount of carbon dioxide in the air would increase
B
The phases of the moon would change or disappear
C
There would be more rain
D
The Earth would become smaller

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.

Jason adds the antibiotic penicillin to a bacterial culture. the bacteria develop genetic modifications in their genome, which gives them resistance to the antibiotic penicillin. what caused this genetic modification?

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?