Answer:
The answer is the Respiratory System.
Explanation:
The Respiratory System is made up of the Lungs, windpipe, voice box (larynx), etc;. Since the lungs are part of this body system, bacteria would threaten this system directly.
Explanation: Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.
The hypothalamus.
The hypothalamus links the nervous system with the endocrine system. It's part of the limbic system but can also synthesizes and secretes hypothalamic hormones. These hormones will either stimulate or inhibit the pituitary gland, which releases hormones that go<span> throughout the body to the glands and organs.
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It is in standard notation
in scientific notation it would be is 5.4 x 10^6