Which of these is a copy of dna that is used to direct the synthesis of a specific protein?

a. mrna

b. rrna

c. trna

d. ribosome?

Impulses are conducted by myelinafed axons by jumping from node to node in a process called a (n): a. action potential. b. excitatory postsynaptic potential. c. saltatory conduction d. monosynaptic reflex e. depolarization.

The pressure differences that make wind happen are caused by what?

Bacteria cells reproduce by binary fission, a type of asexual cell division. One advantage of binary fission is

What are some synonyms for Cladograms?

Several studies showed that after drinking coffee after drinking coffee​, subjects had increased blood levels increased blood levels of antioxidants. antioxidants have been associated withof antioxidants.

A minimum of how many minutes is need to achieve the benefits of Cardiovascular activity

Chimpanzees reproduce sexually, and sponges reproduce asexually. What disadvantage do chimpanzees have compared to sponges

What is the immune system? A. The group of cells and organs that protect the body from disease. B. A group of cells that undergoes apoptosis to protect the body. C. A group of organelles that digest particles that invade the cells. D.

Seth runs up 3 flights of stairs. the first climbs takes him 12 seconds. his second climb takes him 15 seconds. Has the power done been affected?

What is the best description of a molecule