Answer:
d. Epithelial tissues are nourished by blood vessels in adjacent tissues, thus diffusion is limited to thin tissues.
Explanation:
Epithelial tissues have tightly packed cells and have no space for blood vessels to be present between adjacent epithelial cells. The cells of the epithelial tissues get nutrients from the blood vessels of neighboring connective tissues.
Since the exchange of nutrients between the cells of the epithelial and connective tissues occurs through diffusion, epithelial tissues are only one to few cells layers thick to allow nutrient supply to all of its cells.
Prokaryotic cells would be plant cells
eukaryotic cells would be human/animal cells
<span>Milk of magnesia, which is magnesium hydroxide, is used to cure stomach acidity. What is the mode of action of this drug?
</span><span>it acts by neutralizing stomach acid.</span>
Answer:
Li, Na, K, Rb
Explanation:
Los números atómicos de la tabla periódica:
Li - 3
Na - 11
K - 19
Rb - 37
