Answer:
Human Life Cycle. Human Life Cycle mainly consists of 6 stages. They are simply; foetus, baby, child, adolescent, adult and old person.
Explanation:
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The membrane bound organelle you refer to is the Lysosome. The lysosome fuses with a vacuole where it digest the contents.
"Answer DThe outermost layer of old epidermal cells are sloughed off and replaced every 15 to 30 days. The sebaceous glands secrete sebum which maintains the skin pH between 3 and 5. Bacteria which metabolize sebum live as opportunistic pathogens on the skin and cause skin infections."
Answer:
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