i think it is D, she has already constructed the hypothesis and needs is performing the experiment. there is not much of an observation stage because she is looking at a distant end result in a set time frame.
Answer:
the layer of the planet Earth where life exists
Explanation:
They would fall in the clumped or even category
Answer: You had it correct
Explanation:
A derived trait is any trait that is carried down species through a cladogram. Thus, all of the previously listed traits are derived, because they were passed down to species furhter on the cladogram.
Answer:
The red balls here refers to the hydrogen and black balls refers to carbon.
