How do spermatogenesis and oogenesis differ in terms of the number of gametes they produce?

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Approximately what portion of the foods that we eat have been genetically modified in some way? a.fewer than 10% b.about 50% c.nearly 100%