Answer:
People with sickle cell trait carry only one copy of the altered hemoglobin gene and rarely have any clinical symptoms related to the disease. In contrast, people with sickle cell disease carry two copies of the altered hemoglobin gene.
Explanation:
Answer:
B) cAMP
Explanation:
Phosphodiesterase is an enzyme that breaks a phosphodiester bond, for example in molecules such as cAMP and cGMP. So, phosphodiestarases are are regulators of signal transduction: regulate the duration of signaling pathway.
Caffeine is central-nervous-system stimulant and the mechanisms of its action usually are: mobilization of intracellular calcium or inhibition of specific phosphodiesterases.
A parasite is the one who feeds on the host and the host is the one who has to deal with the parasite. basically a parasite feeds on a animal or being so i can survive<span />
Answer:
Explanation:
The Earth's axis is titlted so this means that it is pointing to one side of the Sun as it orbits it over a year-long period.
