Answer:
A. Yes, because molecules move down the
concentration gradient without using energy.
Explanation:
Active transport is the energy-requiring process of pumping molecules and ions across membranes against a concentration gradient. Both endocytosis and exocytosis are active transport processes.
Hope that helps!
Answer:
Fins are limbs.
Explanation:
A limb is considered an appendage of any body. Since a fin is an appendage of an animal body, it is indeed a limb.
Answer: change in solar output.
Answer:
Definition. Identical twins (also called monozygotic twins) result from the fertilization of a single egg by a single sperm, with the fertilized egg then splitting into two. Identical twins share the same genomes and are always of the same sex.
