Answer:
Four major types of secretory epithelial cells cover the surface of the stomach and extend down into gastric pits and glands: Mucous cells: secrete an alkaline mucus that protects the epithelium against shear stress and acid. Parietal cells: secrete hydrochloric acid. Chief cells: secrete pepsin, a proteolytic enzyme.
Explanation:
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Cynndi made a fruit salad using her grandmothers recipe. Cynndi has to read the recipe to learn how to make it and also would have to learn how to prepare the fruit.
Answer:
The correct answer is B. DNA replication is semiconservative.
Explanation:
With this experiment, Messelson and Stahl determined that there was a pattern in replication that left one original strand and added a new one in each case. Therefore, after two rounds, there will be two copies with "original" information exclusively and two copies with mixed strands or hybrids.
Firstly, there are major differences in cell structure between animal and plant cells such as how plant cells have cell walls, large central vacuoles, and a basic rectangular shape, and how animal cells are generally rounder, and have lysosomes and centrioles. However, as an embryo to a fetus, all of us develop stem cells that can be anything and eventually are specialized. This is how we have blood cells which are specifically engineered to compose the blood, and how we also have epithelial cells which compose the skin. Both of these types of animal cells look completely different, but that is because their specialization is not the same despite the fact that their basic parts can be. In order to have specialized cells, they need to adapt and develop a certain structure to function.