<span>The pulse of a person can be located at many different points on the human body. There are times when it can be necessary to check the pulse in the orsalis pedis artery, which is the artery found on the dorsal foot, instead of using the carotid artery. One of the reasons for this would be to make sure that the person is getting proper blood flow into their extremity like the foot.</span>
Answer:
Henry observed <u>ecological diversity</u>.
Explanation:
Ecological diversity can be described as the variations which are present among different ecosystems and how these variations impact the life on Earth. The differences present in the aquatic and terrestrial ecosystems are defined by the ecological diversity.
As Henry is observing the differences in the aquatic life as well as the terrestrial life, hence he is studying ecological diversity.
Ecological diversity is a type of biodiversity i.e diversity of all the living components of ecosystems.
