18 POINTS ! Urban sprawl occurs when
a. cities spread out into the existing countryside
b. cities extend upward
c. people leave cities to live in rural areas
d. none of the above

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

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

Which chemical equation is unbalanced? which chemical equation is unbalanced