They are the source of new genetic variation
Answer:
prokaryotes
Explanation:
prokaryotes where the earliest life forms ,simple creatures that fed on carbon compounds that were accumulating an Earth's early.slowly other organisms evolve that use the sun's energy along with compounds such as sulfides to generate their own energy.
Sexual reproduction... and what is your question again
if your looking for the definition then here it is
the production of new living organisms by combining genetic information from two individuals of different types (sexes). In most higher organisms, one sex (male) produces a small motile gamete that travels to fuse with a larger stationary gamete produced by the other (female).
Answer:
floor rocks were also symmetrical on both sides of the ridge, with the youngest rocks near the center and the oldest rocks farther away. This suggests that new rocks form at the center of ridges and then move away in the opposite directions.
Explanation:
Answer:
segment and point because a line segment have endpoints without any arrows
