Q: Answer the following question given this paragraph: All sound waves begin with vibrating matter. The vibrations generate longitudinal waves that travel through matter in all directions. Q: What do all sound waves begin with? A:

OPTIONS:
- oscillating matter
- talking matter
- enclosing matter
- vibrating matter

A: vibrating matter

input: OPTIONS:
- earthquake
- hurricane
- glaciers
- magma Now, answer this question: Answer the following question given this paragraph: Magma at the mid-ocean ridge creates new seafloor. Q: What creates a new seafloor at the mid-ocean ridge? A:
A:
output: magma

Answer the following question given this paragraph: Fertilizer runoff can create dead zones in the ocean. Q: Fertilizer runoff can create what type of zones in the ocean? A:

OPTIONS:
- fresh zones
- barren zones
- hot zones
- dead zones

Answer: dead zones

Problem: OPTIONS:
- cognitive rhythms
- variable rhythms
- sleep rhythms
- circadian rhythms
Q: Answer the following question given this paragraph: Circadian rhythms are regular changes in biology or behavior that occur in a 24-hour cycle. In humans, for example, blood pressure and body temperature change in a regular way throughout each 24-hour day. Animals may eat and drink at certain times of day as well. Humans have daily cycles of behavior, too. Most people start to get sleepy after dark and have a hard time sleeping when it is light outside. In many species, including humans, circadian rhythms are controlled by a tiny structure called the biological clock . This structure is located in a gland at the base of the brain. The biological clock sends signals to the body. The signals cause regular changes in behavior and body processes. The amount of light entering the eyes helps control the biological clock. The clock causes changes that repeat every 24 hours. Q: What do you call the regular changes in biology or behavior that occur in a 24-hour cycle? A:
Answer: circadian rhythms

Problem:OPTIONS:
- liquid source pollution
- simple source pollution
- targeted source pollution
- point source pollution

Answer the following question given this paragraph: Point source pollution results from the contaminants that enter a waterway or water body through a single site. Examples of this include untreated sewage, wastewater from a sewage treatment plant, and leaking underground tanks. Q: What type of pollution results from the contaminants that enter a waterway or water body through a single site? A:
****
A: point source pollution

Problem:OPTIONS:
- nucleus
- mucus
- cerebellum
- cytoplasm

Answer the following question given this paragraph: or myotube. As a myotube is formed from many different myoblast cells, it contains many nuclei, but has a continuous cytoplasm. This is why skeletal muscle cells are multinucleate, as the nucleus of each contributing myoblast remains intact in the mature skeletal muscle cell. However, cardiac and smooth muscle cells are not multinucleate because the myoblasts that form their cells do not fuse. Gap junctions develop in the cardiac and single-unit smooth muscle in the early stages of development. In skeletal muscles, ACh receptors are initially present along most of the surface of the myoblasts, but spinal nerve innervation causes the release of growth factors that stimulate the formation of motor end-plates and NMJs. As neurons become active, electrical signals that are sent through the muscle influence the distribution of slow and fast fibers in the muscle. Although the number of muscle cells is set during development, satellite cells help to repair skeletal muscle cells. A satellite cell is similar to a myoblast because it is a type of stem cell; however, satellite cells are incorporated into muscle cells and facilitate the protein synthesis required for repair and growth. These cells are located outside the sarcolemma and are stimulated to grow and fuse with muscle cells by growth factors that are released by muscle fibers under certain forms of stress. Satellite cells can regenerate muscle fibers to a very limited extent, but they primarily help to repair damage in living cells. If a cell is damaged to a greater extent than can be repaired by satellite cells, the muscle fibers are replaced by scar tissue in a process called fibrosis. Because scar tissue cannot contract, muscle that has sustained significant damage loses strength and cannot produce the same amount of power or endurance as it could before being damaged. Smooth muscle tissue can regenerate from a type of stem cell called a pericyte, which is found in some small blood vessels. Pericytes allow smooth muscle cells to regenerate and repair much... Q: As a myotube is formed from many different myoblast cells, it contains many nuclei, but has a continuous what? A:
****
A:
cytoplasm