Answer:
An energy pyramid is a model that shows the flow of energy from one trophic level to the next along a food chain. The pyramid base contains producers—organisms that make their own food from inorganic substances. All other organisms in the pyramid are consumers
Explanation:
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If a woman takes HIV medicines during pregnancy and childbirth and her baby receives HIV medicines for 4 to 6 weeks after birth, the risk of transmitting HIV can be lowered to 2% or less. Most HIV medicines are safe to use during pregnancy, and don't increase the risk of birth defects.
In general, the infected mother should simply stay healthy and intake HIV medicines while she is pregnant.
Answer:
It will take 63 years
In 189 years, one-eight of the sample will be left
By multiplying the number of half-life cycles
Explanation:
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