Answer:
Oxygen is the component of Earth's atmosphere which exists entirely as a result of photosynthesis.
These fossils are very useful for us because we can use them to date the layers of rock that they are found in. Fossils that can be used in this way are called index fossils, and rock layers with the same index fossils in them can be correlated. Not my answer, link here for full
http://peter-mulroy.squarespace.com/correlating-rock-layers/
The genotypic ratio of their offspring is 100% Ee.
Hope this helps! God bless
-vf
Hello there ^ _ ^
The loss of color(coral bleaching in coral reef organisms can be a result of <span>loss of zooxanthellae.
Good luck!
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Energy is used to create matter.
