What does biodiversity describe?
a)the number of species on earth
b)the number of individual organisms on earth
c)the number of populations on earth
d)the number of communities on earth

If a set of instructions that determines all of the charactersitics of an organism is comparedto a book, and a chromosme is compared to chaper in the book, then what might be compared to a paragraph in the book?

Where substance is produced during cellular respiration

Several bodily responses are described below. for each response, determine what caused the change in homeostasis. body starts to sweat breathing rate increases amount of saliva produced changes body starts to shiver