Which term describes the process that creates new oceanic crust at mid-ocean ridges?
a.
convergent boundary
b.
palaeomagnetism
c.
seafloor spreading
d.
tectonic motion

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.

Which of the following determines the specificity of a dna probe? a. type of radiation b. level of enzymatic activity c. number of neutrons d. complementary base pairing