Answer:
A polymer is a substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together
Synthetic Polymers: nylon, polyethylene, polyester, Teflon, and epoxy.
Natural Polymers: silk, wool, DNA, cellulose and proteins
Answer:
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Explanation:
Cortisol, a steroid hormone, is produced by adrenal cortex in adrenal gland located just above the kidneys. It is released in high stress situation and low blood glucose concentration. The effects include high increase in production of glucose through gluconeogenesis (breakdown of amino acids/proteins to glucose via deamination pathway), aids in metabolism of fats, proteins and carbohydrates and suppresses immune system.
Please see the attached flowchart diagram for a random concept. As you have not provided the labels, I am afraid I am unable to help you further in this regard.
Answer:
Homeostasis is controlled by the nervous and endocrine system in mammals
Explanation:
Nervous system when you touch a hot pan the nervouse system sends a message to move or feel pain
Endocrine system releases hormones into the bloodstrram that helps our growth and development,helps our organs work metabolism,and reproduction
Hope this helps!
An obligatory parasite is a parasite that can not complete its life cycle without exploiting a suitable host
The correct option is this: PROTO ONCOGENES BECOMES ONCOGENES.
Proto oncogenes genes are those genes that regulate the process of normal cell division in the living system. These cells starts cell division when necessary and terminate the cell division when the necessary cells have been formed. When these genes lose the power to regulate cell division, the cells continue to divide indefinitely without stopping and this leads to a medical condition called cancer. At this stage, the proto oncogenes have been turned into oncogenes, which are genes that caused uncontrolled cell cycle divisions.
