The answer is B. Meiosis involves two cycle of cell division.
Hey there!
Nuclei with a high neutron-to-proton ratio usually undergo a beta emission.
Beta emissions, unlike some other types, is radioactive decay throughout these particles, and can have half lives like other types of exponential (usually) decay. Neutrino, along with <em>beta rays,</em> are coming from, or emitted from the nucleus - hence the name.
Hope this helps!
New, more adaptable species flourish, replacing the extinct species.
The selection pressures before the extinction tend to favor a certain type of organism and the sudden shift in conditions help others move up the food chain.
The primary structure of a protein refers to the sequence of amino acids in the polypeptide chain. The primary structure is held together by peptide bonds that are made during the process of protein biosynthesis. Hope this helped :)
B. Chloroplasts
Plant cells are the only cells that have them, because they take part in photosynthesis. Hence the chloroform, chloroplast.
