Answer the following question given this paragraph: Lab safety symbols warn of specific hazards, such as flames or broken glass. Knowing the symbols allows you to recognize and avoid the dangers. Q: What should you learn that allows you to recognize and avoid the dangers of specific hazards when experimenting, such as flames or broken glass? Choices: - available safety symbols - medical safety symbols - first aid safety symbols - lab safety symbols A:
lab safety symbols
Answer the following question given this paragraph: A photon isn't a fixed amount of energy. Instead, the amount of energy in a photon depends on the frequency of the electromagnetic wave. The frequency of a wave is the number of waves that pass a fixed point in a given amount of time, such as the number of waves per second. In waves with higher frequencies, photons have more energy. Q: The number of waves that pass a fixed point in a given amount of time is called what? Choices: - wavelength of a wave - spectroscopy of a wave - spread of a wave - frequency of a wave A:
frequency of a wave
Q: Answer the following question given this paragraph: Types of mutagens include radiation, chemicals, and infectious agents. Q: Radiation, chemicals, and infectious agents are types of what? Choices: - mutations - endogenous - dioxins - mutagens A:
A: mutagens
Question: Answer the following question given this paragraph: where is the number of moles of gas and is a constant. Avogadro's law is in evidence whenever you blow up a balloon. The volume of the balloon increases as you add moles of gas to the balloon by blowing it up. Q: What happens to the volume of a balloon when you add moles of gas to it by blowing up? Choices: - changes randomly - decreases - stays the same - increases A:
Answer: increases
*Question*
Answer the following question given this paragraph: 7.3 The Vertebral Column The vertebral column forms the neck and back. The vertebral column originally develops as 33 vertebrae, but is eventually reduced to 24 vertebrae, plus the sacrum and coccyx. The vertebrae are divided into the cervical region (C1C7 vertebrae), the thoracic region (T1T12 vertebrae), and the lumbar region (L1L5 vertebrae). The sacrum arises from the fusion of five sacral vertebrae and the coccyx from the fusion of four small coccygeal vertebrae. The vertebral column has four curvatures, the cervical, thoracic, lumbar, and sacrococcygeal curves. The thoracic and sacrococcygeal curves are primary curves retained from the original fetal curvature. The cervical and lumbar curves develop after birth and thus are secondary curves. The cervical curve develops as the infant begins to hold up the head, and the lumbar curve appears with standing and walking. A typical vertebra consists of an enlarged anterior portion called the body, which provides weight-bearing support. Attached posteriorly to the body is a vertebral arch, which surrounds and defines the vertebral foramen for passage of the spinal cord. The vertebral arch consists of the pedicles, which attach to the vertebral body, and the laminae, which come together to form the roof of the arch. Arising from the vertebral arch are the laterally projecting transverse processes and the posteriorly oriented spinous process. The superior articular processes project upward, where they articulate with the downward projecting inferior articular processes of the next higher vertebrae. A typical cervical vertebra has a small body, a bifid (Y-shaped) spinous process, and U-shaped transverse processes with a transverse foramen. In addition to these characteristics, the axis (C2 vertebra) also has the dens projecting upward from. Q: The vertebrae are divided into the cervical region, the thoracic region, and which other region? Choices: - cylindrical region - central region - pelvic region - lumbar region A:
**Answer**
lumbar region
Q: Answer the following question given this paragraph: The major wind belts push the water in the surface currents. The water moves in the direction of :. Q: In the tropics what are the prevailing winds called? Choices: - a front - crosswinds - storm winds - tradewinds A:
A: tradewinds