Answer:
• covers the body and makes up inner lining
• protects against damage, dust, bacteria
Explanation:
Guard cells close up to prevent water loss. These guard
cells will automatically open up if there is a need of water to go out of the
cell. An open stomate allows water to leave through transpiration, guard cells
control the opening and closing of a stomata, stomates will close to reduce
water loss and By opening and closing the stomata on the underside of the
leaves.
Hypophyseal portal system allows the hypothalamus to have direct communication with the anterior pituitary.
The hypophyseal portal system is a network of blood vessels that connects the anterior portion of the gland and hypothalamus at the base of the brain. Two capillary beds, one in the median eminence and the other in the anterior pituitary, make up the portal system. Its principal job is to swiftly transfer and exchange hormones between the anterior pituitary gland and the hypothalamic arcuate nucleus.
The cortisol, androgens, and aldosterone hormones interact with anterior pituitary gland cells via travelling through the hypophyseal portal system. Hormonal signaling through the hypophyseal portal system enables connection between these two structures.
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Answer: Yes, the zoonotic is the infectious diseases that can be contracted by the people who handle birds.
Explanation:
Zoonotic is the infectious diseases that can be transmitted through birds. Highly infected birds are infectious to the other organism as, it is transmitted from one person to another.The zoonotic infection are caused by the viruses, fungi and bacteria.
Example of zoonotic disease are:
- Animal flu and bird flue
- Anthrax
- Cat scratch fever
