Match each characteristic with the correct animal group. 1. fish
gills, then lungs
2. amphibians
scales and shells
3. reptiles
feed milk to young
4. birds
most can fly
5. mammals
scales and gills

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis. b. the primary role of microbes on the planet involves causing disease in animals and humans. c. microbes produce vitamins in the intestines. d. microbes play a role in breaking down waste and decomposing dead organisms.

Identify the terms using the following picture. principle of dominance item 1 can be described as the . item 2 can be described as the . the "p" represents from one parent.

What sre the effects of hemolytic disease of a newborn