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Alona [7]
3 years ago
12

Which radioactive isotope would you use to date a 4-billion-year-old piece of granite?

Biology
1 answer:
schepotkina [342]3 years ago
3 0

Explanation:

Uranium- 238 - lead 206 dating

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Lipids function in _
sergejj [24]

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An energy reserve

Explanation:

Lipids perform functions both within the body and in food. Within the body, lipids function as an energy reserve, regulate hormones, transmit nerve impulses, cushion vital organs, and transport fat-soluble nutrients.

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Why is fire matter and why is ice matter ?<br>​
matrenka [14]

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becouse ice is a solid and fire predouses heat

Explanation:

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3 years ago
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Eric follows a vegetarian eating pattern, and he wants to know whether he needs to take any vitamin and mineral supplements. wha
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It would be most important for Eric to find out his <em>zinc, iron and vitamin B12 (or  riboflavin) levels, and ensure that he is obtaining adequate amounts of these vitamins and minerals through vegetarian sources </em>.

A vegetarian diet is typically low in zinc rich foods, since meat, shell fish and eggs are the most abundant sources of zinc. In order to ensure that he obtains sufficient zinc, Eric should make sure he consumes vegetarian zinc sources such as legumes, lentils, dairy, nuts and seeds on a daily basis.

Since iron and vitamin B12 are also difficult to obtain from vegetarian sources, Eric should consume iron rich foods such as spinach, kale, whole grains, broccoli, legumes,etc., on a daily basis. As for vitamin B12, daily supplementation of 2.4 μg is recommended for vegetarians. Alternatively, riboflavin fortified cereals and grains are also recommended to meet daily riboflavin requirements.

5 0
3 years ago
When the body receives stimuli, which structure typically processes the stimuli?
ollegr [7]

The brain recieves stimuli. Your brain does a lot of things for you. It is one of the busiest organs in your body. Your brain stimulis can enjoy various brain stimulis games to keep your brain healthy and sharp. if it stays healthy, everything follows after.

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