Giraffes have a special niche in the African savanna. They are able to reach a six-foot band of foliage beyond the reach of all other terrestrial browsers except elephants. Their long tongue is useful for grasping leaves in the crowns of trees.
(They also have a modified joint at the base of the skull that allows their head to extend vertically to reach the highest branches.) Giraffes only drink water every two to three days, but can drink up to 10 gallons at a time. They gather most of their water from the vegetation they eat.
Mucus would most likely accumulate in the respiratory tract as a result of ciliary destruction.
Pertussis (whooping cough) is a highly contagious respiratory tract infection. A severe hacking cough is followed by the a high-pitched breath intake that sounds like "whoop" in many people. Before the vaccine, whooping cough was thought to be a childhood disease. Whooping cough now primarily affects children who have not received the full course of vaccinations, as well as teenagers and adults whose immunity has waned.
Deaths from whooping cough are uncommon, but most commonly occur in infants. That is why it is critical for pregnant women and others who will have close contact with an infant to be immunized against whooping cough. The best way to avoid pertussis is to get vaccinated. Check that you and your loved ones have received their pertussis vaccines.
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The third option, destroying cells
The number and appearance of chromosomes in a cell is called a karyotype.
Sex chromosomes are placed as the last pair of chromosomes.
Karyotype analysis can reveal abnormalities, such as missing chromosomes, extra chromosomes, deletions, duplications, and translocations.
The answer would be C.) Keystone species due to the vital role the sea otter has in order to regulate the ecosystem.