1. Three (3) Phylums
2. Nine (9) Classes
3. The Class has more groups.
4. The Phyla contains more organisms.
Answer:
However, punctuated equilibrium is any sudden, rapid change in a species and can also be the result of other causes, such as <u>huge and sudden changes in the environment that result in more rapid changes in the organisms through harsher selection.</u>
Answer:
Oxygen atoms contain 16 times more mass than Hydrogen atoms.
(a brainliest would be appreciated)
The muscular system can be broken down into three types of muscles: skeletal, smooth and cardiac, according to the NIH. Skeletal muscles are the only voluntary muscle tissue in the human body and control every action that a person consciously performs. The muscle that is found at the heart is Cardiac Muscle. It is an involuntary, striated muscle that constitutes the main tissue of the walls of the heart. Hope this helps.
(1) they keep toxic substances out of the cell;
(2) they contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, and metabolic products, that mediate cellular and extracellular activities to pass between organelles and between the cell and the outside environment;
(3) they separate vital but incompatible metabolic processes conducted within organelles.
