b) some bacteria reduce nitrate ion
Answer:
Growth-hormone-inhibiting hormone or somastostatin.
Explanation:
Basically the GH is secreted by the anterior pituitary glands under the regulations of certain secretory nuclei in the hypothalamus.The cells of these nuclei secrets two hormones,
1. growth hormones releasing hormone which stimulate growth hormones releasing-receptors receptors for the pituitary glands to secrets growth hormones,
and
2. the Growth-hormones-inhibiting hormones. This hormone is secreted, and carried in the blood stream by <u>hypothalamo-hypophsial-portal circulation</u> in response to elevated levels of GH. They inhibit the secretion of Growth hormones in the pituitary glands;by inhibiting the activities of growth-hormones -releasing hormone, preventing them from binding with <u>growth-hormone-releasing hormones receptors</u> in the anterior pituitary gland,therefore inhibiting GH secretions .
The three major rocks are igneous, sedimentary, and metamorphic
the two types of igneous rocks are diorite and gabbro
A substance, either an ion or an electrically neutral molecule, formed by the union of simpler substances (as compounds or ions) and are held together by forces that are chemical rather than physical.
A sieve cell (or sieve tube) has narrow pores in which nutrients flow from cell to cell.