Plz answer i need to catch up on work

the options: conduction, mid-ocean-ridges, sea floor spreading, convection currents, continental drift, earthquakes, subduction, continental shelf, pangea

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.

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

When mendel crossed a true-breeding short plant with a true-breeding tall plant all the offspring were tall. which term describes the gene for tallnes?