Which scenario causes gene flow? A:one flower pollinates other flowers in its population
B: a population size decreases after a natural disaster
C: new mutations arise within new populations
D: an animal moves to a new population and mates

D: an animal moves to a new population and mates

Explanation:

Gene flow, also known as gene migration, is the transfer of genetic material (DNA) from the population of a species to another population of the same species. Gene flow can be caused by migration of one member of a particular population that interbreeds in another population or due to aided transfer of gametes from one population to another, as in the case of cross-pollination.

Based on the above definition, an animal moving from its own population to a new population and mates there represents a scenario that causes gene flow.

In the first option, one flower of a population is pollinating another flower in the same population. This doesn't show gene flow because there is no transfer of genes (present in gametes) to a different population.

its 42

i say its d?

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.