The actual answer is, "A", an ocean trench.
You can find out more about them by researching them up on Google, it's only a few phrases and a hit on the enter key :P
Yes. I think that there are some closely related species of organisms that cannot be identified with a dichotomous key.
Dichotomous key is used to classify objects or organisms based on its physical characteristics. Because of that limitation, there are species that may be related according to the dichotomous key but are in fact not or its relation is very minimal whereas there are organisms that may seem unrelated based on their physical characteristics but are actually from the same ancestors.
Answer:
I can't speak Spanish sorryy
There are 5 nucleic acids in DNA
Answer:
II) cholesterol
Explanation:
Cholesterol is the component on which the plasma membrane stability depends. Cholesterol is a steroid with benzene rings 27 number of carbon atoms and have 3 benzene ring and a 5 carbon ring.Cholesterol is waxy fat like substance found in the cell membrane of all the cell and helps to maintain the fluidity of the cell membrane.The formula for cholesterol is C27H46O. Cholesterol is needed to make hormones and vitamin d in your body.