Answer:
The awnser to your question is C.
Explanation:
The colder matter is the atoms get closer therefore making the matter more dense. A. is half correct but if the matter is cold it wouldn't be more dense because when something is less dense it goes above whatever is around it. Take for example water and oil. They seperate into different layers due to density. Hope this helps. :)
It is C, the cell membrane. The membrane is responsible for controlling what goes in and out of the cell by using diffusion and osmosis. The cell wall's purpose is to give shape to the cell, so the answer is C.
Lipids are a class of organic compounds, which suits best under the column macromolecules on the hierarchy of biological organization
Answer:
The atomic model is our understanding of how the atom is structured. At one point in history, people believed that any substance was simply made of that substance and would retain that property no matter how small a quantity it was reduced to. Later, some argued that all matter was made of tiny particles called atoms. While this is correct, later researchers found that even the atoms were made of smaller particles called electron, protons, and neutrons. More recently, scientists have discovered quarks, tiny particles that makeup protons and neutrons.
Answer:
B. The DNA replicates.
Explanation:
Activity in the chromosomes must occur before the beginning of mitosis. The cells will enter the S1 phase in preparation to divide.
