Answer:
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The fingernails on the manatee are homologous structures.
Explanation:
The manatee is an animal that lives in the water, but it is not an animal that is related to the fish, instead it is a mammal. When the term mammal is mentioned, people often think of terrestrial animals, but some of the mammals are not living in the water, and have lot of characteristics that are very similar to the other marine animals. Mammals that live in water are:
Some of these mammals, like the manatee, actually have fingernails, which is very weird considering that they are of no use. The fingernails are actually homologous structures, or rather structures that have been kept from their ancestors, and can be found at many other animals with which they share common ancestor. While the ancestors of the manatee were terrestrial mammals, over time they totally transformed as they were using the water more and more, but the fingernails remained, with the main reason for that being that they are not disadvantageous, so there is no evolutionary pressure for the animal to lose them.
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Answer:
a
Explanation:
because inside a thermometer is mercury which becomes denser the hotter
Answer:
The Sahara is the world's largest desert; it extends across most of the northern part of Africa.
Explanation:
That would have to be the northern-most point in the state.
The northernmost part of New York State is a line that runs
about 68 miles along the 45th parallel of north latitude, roughly
from Rooseveltown to Rouses Point. Anywhere along that line
sees the sun at the same altitude at local solar noon.