The forelimbs of humans, cats, and bats have a number of detailed similarities in their construction. what best explains these s
imilarities? the forelimbs of humans, cats, and bats have a number of detailed similarities in their construction. what best explains these similarities?
Descent with modification helps to explain anatomical similarities among certain species. The bones of the forelimbs of humans, cats, and bats (you can add in penguins, alligators, and more) are used in different ways but have similar structures.
The best explanation is that these animals have a common ancestor. With new generations, new species emerged by natural selection from different populations, and with this, the bones become better for different tasks.
The forelimbs and other such structures with anatomical similarities due to a common ancestor are called homologous structures.
This statement is false. Yes, the cilia and mucus in the trachea does sweep upward, however, it moves the mucus towards the pharynx where it is swallowed not towards the nose where it is sneezed out.
Intertidal zone is present between low and high tide and hence, it can be above or below water. The zone is characterized by presence of nutrients and abundant oxygen as well as availability of light. The zone exhibits fluctuations in salinity and temperature as caused by waves.
