Answer:
Index fossil that is also known as indicator fossil is used to determine the age of the layers of the rocks. It says that the new layer of sedimentary rocks lie over the old layer.
The deeper we go, the older the rocks we will find. Index fossil of animals that lived or survived only for a short period of time are very useful. An example of index fossil can be Ammonites that were found in Mesozoic era that was about 25-35 million years ago.
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Answer: C) Algae</h2>
Explanation:
By process of elimination:
- moss is a plant belonging to the Bryophyta division. It is not a protist
- paramecia are animal-like protists that don't generally photosynthesize
- protozoans feed on organic matter such as other microorganisms or organic tissues and debris (not autotrophic)
- This leaves Algae, which are autotrophic protists.
July is the warmest summer it has been proven by me and my fellow class mates.