Answer:
In primary active transport, the carrier protein uses energy directly from ATP through hydrolysis.
In secondary active transport, it uses energy stored in the concentration gradients of ions.
Answer:
B) Competition
Explanation:
The native and non-native cattails are <em>competing </em>for the area.
Osmosis is your answer. It is the process of water molecules moving from a high concentratio<span>n gradient to a low concentration gradient.Hoped I helped!</span>
Arctic foxes are mammals and as such, they share the basic sexual dimorphism of all mammals.
