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➷ The endocrine system is an organ system that works to produce and secrete hormones. It works by producing and secreting hormones that serve many purposes in the human body. For example, the secretion of insulin helps to regulate the level of glucose in the blood.
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Intestinal gland secretes intestinal juice ,it contains enzymes and their role is to decompose food more and then conduct them into the large intestine or by intestinal absorption to the blood
Answer:
Through natural selection the disease gain immunity to the antibiotic.
Explanation:
As the antibiotic kills off the members of the population that are not resistant, leaving only the resistant members. These members then reproduce, passing the immunity to their offspring, causing the population to become immune.
So every organism is individually classified without the worry of mixing up two organisms like a fly and nat.
