Answer:
Testes and ovaries produce two types of hormones:
androgens (male sex hormones)
estrogens (female full hormones)
In each type of gland, both types of hormones are secreted only in different amounts: the ovaries secrete more estrogen than the androgen hormones, and the sperm inversely.
Explanation:
In testicular tissue, Leydig cells produce androgen hormones: androsterone and testosterone. The ovaries produce a group of estrogen hormones and progesterone. These hormones exert their effect at puberty when the glands are activated. At puberty, the pituitary gonadostimulins activate the sex glands, whose activity leads to the development of secondary sex characteristics (the appearance of first menstruation in girls, beards and mustaches in boys, etc.).
Answer:
it damages the earth's atmosphere and harm animals and the air we breath
Answer:
Visibility
Explanation:
The depth at which an Emperor Penguin can dive is dependent on the extent to which sunlight can penetrate the ice water according to research. The extent of at which light can penetrate the ice water is also dependent on the degree of ice cover on the ocean. As a result of this, <em>as the depth of dive of an Emperor Penguin increases, visibility also decreases as light penetration reduces. In order words, lack of sunlight would reduce visibility as the diving depth of the Emperor Penguin increases.</em> That is why most deep dives have been found to occur in spring time when light penetration is high as a result of sunlight availability.
<span>The pectoral muscles of the chest assist in the swinging movement of the arms.
The pectoral muscles which consists of the collar bone and shoulder blade makes possible the swinging movement of the arms</span>
