Bio ? ?

1. transmission of the nerve message between neurons is electrical in nature.
a. true
b. false

2. blood ph level is maintained by the respiratory system.
a. true
b. false

Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1

What abo controlling alleles could kim give her child

Which of these is true for bacteria because they are prokaryotic cells? a. they can engulf body cells in order to make memory cells. b. they must invade viruses in order to reproduce. c. they are much larger than eukaryotic body cells. d. they can reproduce on their own outside of other cells.