Mitochondria are shaped perfectly to maximize their productivity. They are made of two membranes. The outer membrane covers the organelle and contains it like a skin. The inner membrane folds over many times and creates layered structures called cristae. The fluid contained in the mitochondria is called the matrix.
The right answer is A.
During the cell cycle, the amount of DNA in the nucleus varies: it doubles during interphase, allowing the daughter cells to receive an amount equal to that initially present in the mother cell. During mitosis, the daughter cells thus receive the same number of chromosomes, which is equal to that of the mother cell. Mitosis is a consistent mode of reproduction. The number of chromosomes, which is characteristic of the species (46 in the human species, 23 pairs), is therefore kept constant during successive cell cycles.
Answer:
Genetic commonalities show that two organisms probably came from a single common relative, meaning they are related.
Explanation:
If my cousin and I both have blue eyes, it is probably because someone in our shared genetic heritage also had blue eyes and that gene was passed down.
Answer:Organisms must struggle to get what they need to survive, competing against other organisms that want the same things they do.
Explanation: