Q: What involuntary muscle is found only in the heart? Read this paragraph and choose the correct option from the provided answers: Cardiac muscle is also an involuntary muscle, found only in the heart. The cardiac muscle fibers all contract together, generating enough force to push blood throughout the body. What would happen if this muscle was under conscious or voluntary control?. Choices: - physiological muscle - respiratory muscle - digestive muscle - cardiac muscle A:
cardiac muscle

Q: What sound can be heard when sound waves bounce back from a hard object? Read this paragraph and choose the correct option from the provided answers: Did you ever hear an echo of your own voice? An echo occurs when sound waves bounce back from a hard object. The man in Figure below is trying to create an echo by shouting toward a rock wall. When the sound waves strike the rock wall, they can't pass through. Instead, they bounce back toward the man, and he hears an echo of his voice. An echo is just one example of how waves interact with matter. Choices: - loop - eerie - boom - echo A:
echo

Q: Q: Because the nuclei of each h atom contain protons, the electrons in the bond are attracted to the nuclei (opposite charges attract). but because the two atoms involved in the covalent bond are both h atoms, each nucleus attracts the electrons by the same amount. thus the electron pair is equally shared by these? Read this paragraph and choose the correct option from the provided answers: Because the nuclei of each H atom contain protons, the electrons in the bond are attracted to the nuclei (opposite charges attract). But because the two atoms involved in the covalent bond are both H atoms, each nucleus attracts the electrons by the same amount. Thus the electron pair is equally shared by the two atoms. The equal sharing of electrons in a covalent bond is called a nonpolar covalent bond. Now consider the HF molecule:. Choices: - four atoms - one atom - nine atoms - two atoms A:
A: two atoms

Question: Q: In animals, what process occurs only in germ cells, which are in the ovaries or testes? Read this paragraph and choose the correct option from the provided answers: Choices: - mitosis - electrolysis - reproduction - meiosis A:
Answer: meiosis

*Question*
Q: Nails cover the tips of what? Read this paragraph and choose the correct option from the provided answers: Nails are similar to claws in other animals. They cover the tips of fingers and toes. Fingernails and toenails both grow from nail beds. As the nail grows, more cells are added at the nail bed. Older cells get pushed away from the nail bed and the nail grows longer. There are no nerve endings in the nail. Otherwise cutting your nails would hurt a lot!. Choices: - lips and teeth - fingers and lips - ribs and nerves - fingers and toes A:
**Answer**
fingers and toes

(Question)
Q: Where do living things obtain the energy to carry out all life processes? Read this paragraph and choose the correct option from the provided answers: Living things need energy to carry out all life processes. They get energy from food. Choices: - fuel - waste - oxygen - food A:
(Answer)
food