Answer:
Active transport requires cellular energy for substances to cross the cell membrane; passive transport does not.
Explanation:
Active Transport works against the concentration gradient and therefore needs energy to make it happen
Passive transport such as Diffusion and Osmosis uses the properties of natural movement of particles which moves the molecules from areas of high concentration to areas of low concentration or down the concentration gradient and happens passively without the need for energy
Answer:
false
Explanation:
The evolution of the species trough thousands of years we can just observe or compare them by fossils. Observation of a specie through 20 or 30 years, will just give us a general idea of their behavior in an ecosystem and some adaptations to its surroundings.
Answer:
The intensity of density-dependent factors increases.
Explanation:
It is called the cytoplasm. It contains a kind of semi-liquid that contains water, named cytosol!
Answer:
It occurs in the cytoplasm. Glycolysis also involves two stages which break up glucose. In the 1st stage, Glucose is broken into two phosphorylated 3-carbon compounds through a series of reactions.