C. Trace Fossils.
Because these are TRAILS, and not the actual animal, these are trace fossils.
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.
Answer:
a cell splitting into two cells
Explanation:
hope this helps mark me as brainliest pls :)
~Alex