A because studied it already
Im pretty sure its hypothesis
The mammalian diving reflex refers to an adaptive characteristic that permits the mammals to stay underwater for an elongated duration of time. It is more noticeable in aquatic mammals, however, is weaker in mammals like humans.
This reflex is initiated when the face encounters with cold water. The initial influence is bradycardia in which the rate of the heart slows down up to 25 percent. There is peripheral vasoconstriction that comprises a reduction in the supply of blood to the arms and legs, and the supply upsurges towards the brain.
It can be stated that in humans, it is not an evolutionary vestige, but yes it is not much amended as aquatic mammals due to their terrestrial habitat.
Answer:
Operons afford the organism the opportunity to simultaneously regulate transcription of multiple genes, whose products are active in the same process.
Explanation:
Operon is the group of related genes and the operator and promoter sequences that regulate their expression. All the genes in an operon are expressed together and are under the regulation of the same promoter and operator sequences.
Operons consist of the genes that are involved in related metabolic pathways. For example, the genes that code for the enzymes of lactose catabolism are expressed together as lac operon. It allows simultaneous expression of the genes of lactose catabolism only when lactose is present in the medium. Similarly, these genes are inhibited simultaneously in absence of lactose by binding of repressor protein to the operator sequence.
The similarities in the structure of the three species is due to their sharing a common ancestor while the differences is due to adaptation.
<h3>What is divergent evolution?</h3>
Divergent evolution is evolution where individuals who shared a common ancient ancestor process to have differing structures due to differences in their habitats.
All three species that Flor observed having similar structures is because they had a common ancestor.
The species had differences because they evolved to adapt to their different environments.
Wall geckos and Pacific gulls have temporal holes in their skulls as adaptations to their habitat.
Learn more about adaptations at: brainly.com/question/29594
