Answer: C. 30 - 50 million years ago
Explanation:
Fossils found in layer Y formed 30 million years ago according to the graph above. Similarly, fossils found in layer Z formed 50 million years ago.
If a fossil (fern fossil) is found between layer Y and layer Z, it means that it formed between the years that the fossils in layers Y and Z formed which is 30 - 50 million years ago.
so ATP is adenine triphosphate
it has 3 phosphate groups, hence the 'tri'
it has nitrogen containing carbon rings
and it also had a carbon ring containing OH groups
i can't draw it on here but if you google the structure hopefully my explanation will make more sense
Answer:
decay chain refers to a series of radioactive decays of different radioactive decay products as a sequential series of transformations.
Explanation:
Biological species is the term for a group of interbreeding organisms that are able to produce fertile young.
The answer is d- <span>psychoneuroimmunology</span>
