Isn’t the answer to C when one goes over the top of another?
That is true because that’s where it’s mostly are
Explanation:
monohybrid crossdihybrid crosshomozygous crossheterozygous cross The term which describes the mating of organisms that have different homozogous alleles for a single trait is monohybrid cross . The 'mono' refers to the singular trait while 'hybrid' refers to the crossing of two different parents.
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.
Gradual changes in the frequency of diseases over long periods are known as SECULAR TIME TRENDS. For example, the rate of mortality in USA due to coronary heart diseases over a period of time. Onset of puberty in girls is also a secular time trend.
Secular time trend is also referred as Secular Variation and Secular Drift.