335 million years ago. The continents together were called Pangea(the supercontinent)
The statement 'Exploring the relationship between the material in a rock sample and its hardness' correctly describes an experimental investigation (Option C).
<h3>What is an experimental investigation?</h3>
An experimental investigation is defined as a procedure used in the scientific method to test an explanation or hypothesis, which can be confirmed or rejected.
In conclusion, the statement 'Exploring the relationship between the material in a rock sample and its hardness' correctly describes an experimental investigation (Option C).
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A moutain life zone is basically a moutain ecosystem. Life zones are regions or places where plants and animals live. So, a moutain life zone will be like a moutain lion, or a moutain goat. "Animals and plants that live in that area is a life zone."
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Answer:
All life respires, or breathes. Respiration in mammals is similar to respiration in other air-breathing animals. Respiration extracts oxygen from the air, which is then used by cells. Respiration also carries waste carbon dioxide away from the cells. Although respiration depends on other systems, like the circulatory system, to take oxygen and carbon dioxide to and from cells, the respiratory system has the primary responsibility of bringing oxygen in to a mammal's body and sending carbon dioxide into the atmosphere.
Explanation:
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Hello,
The answer is option D "<span>hepatitis".
Reason:
The answer is option D because </span>hepatitis is a infection in the liver which causes toxins and <span>hereditary conditions. Its not option A because dysentery is the infection in the intestines that causes diarrhea. Its not option B because polio is a viral disease that hurts the nerves and can lead a person to be paralyzed. Its also not option C because mumps is also a viral infection that mainly infects the parotid glands.
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~Nonportrit</span>