Answer:
c. the hummingbird and the tubular flower it pollinates
Answer:
The correct answer is A. The larynx moves up against epiglottis when food is swallowed to prevent passage of food into it.
Explanation:
The epiglottis is a moist, cartilaginous structure that is part of the cartilaginous skeleton of the larynx. It also marks the boundary between the oropharynx and the laryngopharynx. The epiglottis obstructs the passage of the bolus at the time of swallowing preventing it from going to the respiratory system.
Larynx closure occurs when the vestibular and vocal folds approach the midline during swallowing. Occasionally, when you eat very fast, solid foods or liquids can enter the larynx.
The answer is <span>geographic isolation.</span>
<span>When a new species form by geographic isolation, it is called
geographical speciation or allopatric speciation. Geographical isolation is a physical separation which prevents gene
flow between distinct populations (on the island and on continent). The island populations will eventually diverge from a single species that migrated to the island. The members of the populations, which once belonged to the same species, will
no longer be able to mate and produce offspring. Eventually, the formation
of new species will occur, for example kangaroos, koala, and wombats, form that one species.</span>
The medical term Sphygm means pulse. It is short for sphygmomanometer.
