Answer:
Active transport
Explanation:
The process of transport of substances that uses energy and carrier proteins of the membrane is called active transport. Amino acids can not cross the hydrophobic core of the membrane and therefore, are transported through carrier proteins. The carrier proteins transport the amino acids using energy and the process is called active transport.
Answer:
Populations have variation in traits due to random mutation, crossing over and environmental conditions.
Answer:
Fat
Explanation:
Animals rely on fat for energy during hibernation.
Answer: Summer
Explanation: because Texas is in the northern hemisphere therefore the sun is directly on it
An undissolved solute, I believe.