Answer:
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Explanation:
True because the xylem transports water from the roots to the rest of the plant's body above ground and can only move up, whereas the phloem transports organic compounds both up and down the plant.
Answer:
The term secretion refers to the cell that releases a substance into the extracellular space.
Explanation:
When a cell or organ or gland produce and secretes substance in to extracellular space,this biochemical process is called as secretion.
The secretory products may be hormone, enzymes etc.
This process facilitates the movement of material from one place to another place.
For example, Pituitary gland produce and release prolactin hormone that induces breast cells to produce lactation during sucking process done by baby.
Pituitary gland also secrete different hormones that acts on different glands like adrenal, testes, ovary, thyroid gland etc that in turn produce different hormones like adrenaline,testosterone,estrogen,progesterone, TSH,T3, hormone etc.
Social behavior refers to the interaction exhibited among two or more organisms of the same specie. Benefits of social behaviour include the following:1. It offers protection. Many animals live together in groups in order to secure protection for themselves.2. It heightened the success of obtain food. Previous studies have shown that many animals are successful in searching for food if they search in groups. 3. Some animals travel in groups in order to make travel easier and also to protect themselves from predators.
There is no known relationship between ribosomes and the nucleus
