The earliest multicelled organisms on Earth were: a
Bacteria
b
Vertebrates
c
Invertebrates
d
Plants

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called

Which of the following is caused by reproductive isolation within a species? a. a decrease in gene flow b. an increase in genetic flow c. a decrease in genetic drift d. an increase in gene flow

Which of the following describes research that would be considered basic science? a. a farmer is trying to improve his crop yields by using a new kind of fertilizer. b. a college students is curious about the growth of desert pants in the presence of excess amounts of water. c. government officials are trying to prevent the spread of new strain of influenza virus. d. a doctor is trying to determine why a patient is feeling tried and sick.b.a college students is curious about the growth of desert pants in the presence of excess amount of water