B is correct. Here's why:
A states that horses were once carnivores. Large, grinding teeth isn't used by meat eaters; those would be sharp, serrated teeth. This is incorrect.
C talks about migration from S.A. to N.A., and nowhere in the statements above does it mention South America, so that's incorrect as well (unless you know something I don't)
D states that horses share a common ancestor with all mammals. I don't believe the mesohippus was the ancestor of any dolphin species.
Hope this helps!
They contain more mitochondria.
Energy in the form of ATP is required to pump hydrogen ions against the concentration gradient. Active transport is a mediated process that requires the use of specialized membrane proteins these proteins require energy in the form of avenues and triphosphate or ATP in order to facilitate necessary conformational changes to the large protein molecules
In all eukaryotic cells, mitochondria are small cellular organs bound by membranes, making up most of the chemical energy needed to power the cell's biochemical reactions. This chemical energy is stored inside the generated molecule ATP. Respiration in the mitochondria uses oxygen for the production of ATP in the cycle of the Krebs or Citric acid via pyruvate oxidation (through the cytoplasm glycolysis process).
Learn more about ATP formation at brainly.com/question/7442284
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They will compete with other shellfish and clams and hurt their populations.
Answer;
-Holocrine secretions
Explanation;
-Holocrine secretions are produced in the cytoplasm of the cell and released by the rupture of the plasma membrane, which destroys the cell and results in the secretion of the product into the lumen.
-The holocrine gland releases its secretions by disintegrating the whole cell So the entire cell breaks down to release what's called sebum, and thus, another name for holocrine glands are sebaceous glands sebaceous because they release sebum.