Answer:
The answer is:
A. An organism whose cells each contain a membrane-bound nucleus.
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Answer:
A hair follicle anchors each hair into the skin.
Explanation:
The hair bulb forms the base of the hair follicle. In the hair bulb, living cells divide and grow to build the hair shaft. Blood vessels nourish the cells in the hair bulb, and deliver hormones that modify hair growth and structure at different times of life.
Answer:
The acidity level of water is measured by the pH scale. Pure water has a pH of 7, which is neutral. However, natural rainwater actually has a pH of 5.6 because it gets exposed to the gases in the atmosphere, making it a bit acidic. True acid rain will have a pH level measuring from 5.0-5.5.
Each one is correct except d
B. Volcanic lava and ash
Explanation:
One of the ways the earth adds rocks to the crust is through volcanic lava and ash. Volcanic activity is a constructive process that occurs on the earth surface because it brings more materials to the earth.
- During a volcanic eruption, lava which is a form of molten rock reaches the surface of the earth where it cools and solidifies to form volcanic rocks.
- Subduction is a destructive process along convergent margins.
Learn more:
volcanic eruptions brainly.com/question/5055821
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