True or False: climates have always changed, but since the Industrial Revolution, climates are changing very rapidly which has contributed to sudden extinctions of may species .

What is a coast of using technology to transport water? a.cities can be built in otherwise uninhabitable areas. b.crops can be irrigated and grown in new areas. c.floods can be averted in flood-prone areas. d.freshwater supplies can be depleted in an area.

Because of its structure the cell membrane is known as a phospholipid ? a.bilayer b.molecule c.fluid d.barrier

In sexual reproducing animals once fertilization of the egg takes place, the exists as a single cell until cell division begins. a) egg b) larva c) sperm d) zygote