Regulation is the biology theme among the choices given in the question that this example represents
Answer:
Frozen
Explanation:
Most if it is in glaciers
I think it’s D: X-linked dominant bc there is a dominant allele in the genotype for ones indicated in green. I am not sure about this so plz check other sources too.
It is important that the cell membrane contains openings into the cell because different ions and molecules enter and exit the cell through pores (membrane channels) located in the membrane.
Answer: Protons
Explanation: Every atom is defined by its protons every element. So if it has 1 proton its hydrogen no matter what. If it has 2 protons its helium no matter what and so on. So if you know the number of protons you know the element.
The atomic number tells you the number of protons that are in the core of a particular element.