<span>about 150 million kilometers
hope this helps</span>
Answer:
B.) Gap junction
Explanation:
Plasmodesmata (singular form: plasmodesma) are intercellular organelles found only in plant and algal cells. (The animal cell "equivalent" is called the gap junction.)
Answer:
As mammals grow, they stop producing lactase.
Explanation:
Mammals consume their mother's milk during the first stage of life. Milk has a sugar called lactose. Lactose is a disaccharide formed by the union of one molecule of glucose and another of galactose. To absorb it our digestive system releases an enzyme (lactase) that breaks the union between galactose and glucose. As mammals grow, they stop producing this enzyme, which makes lactose indigestible. As a result, ingesting milk may cause diarrhea, gas and bloating.
<span>Mosses cannot grow tall because they do not have tubes to carry water upwards. They rely on diffusion to carry their water.</span>
