Answer the following question given this paragraph: The number of waves that pass a fixed point in a given amount of time is wave frequency . Wave frequency can be measured by counting the number of crests (high points) of waves that pass the fixed point in 1 second or some other time period. The higher the number is, the greater the frequency of the waves. The SI unit for wave frequency is the hertz (Hz) , where 1 hertz equals 1 wave passing a fixed point in 1 second. The Figure below shows high-frequency and low-frequency transverse waves. You can simulate transverse waves with different frequencies at these URLs: http://phet. colorado. edu/en/simulation/wave-on-a-string and http://zonalandeducation. com/mstm/physics/waves/partsOfAWave/waveParts. htm. Q: What are waves that pass a fixed point in a given amount of time called? Choices: - tendency frequency - combination frequency - radio frequency - wave frequency A:
wave frequency
(Question)
Answer the following question given this paragraph: Many species use their body shape and coloration to avoid being detected by predators. The tropical walking stick is an insect with the coloration and body shape of a twig which makes it very hard to see when stationary against a background of real twigs (Figure 45.20a). In another example, the chameleon can change its color to match its surroundings (Figure 45.20b). Both of these are examples of camouflage, or avoiding detection by blending in with the background. Q: Many species use their body shape and coloration to avoid what? Choices: - exposure - sunlight - human contact - detection by predators A:
(Answer)
detection by predators
Ques: Answer the following question given this paragraph: Fish have gills. Gills are organs behind the head that absorb oxygen from water. Water enters through the mouth, passes over the gills, and then exits the body. Q: What is the name for the organs behind the head of a fish that absorb oxygen from water? Choices: - pores - alveoli - lungs - gills A:
Ans: gills
(Q).
Answer the following question given this paragraph: The skeleton supports the body, protects internal organs, produces blood cells, and maintains mineral homeostasis. Q: What structure supports the body, protects internal organs, produces blood cells, and maintains mineral homeostasis? Choices: - fossil - skin - cuticle - skeleton A:
(A).
skeleton
Ques:Answer the following question given this paragraph: The power of the ocean modifies landforms by erosion and deposition. Landforms modified by both erosion and deposition are seen in this photo. The cliff is being eroded by incoming waves. The beach is being created as sand is being deposited. Q: By what processes does the ocean modify landforms? Choices: - splash and deposition - shape and deposition - sweeping and deposition - erosion and deposition A:

Ans:erosion and deposition
Question: Answer the following question given this paragraph: Loudness refers to how loud or soft a sound seems to a listener. The loudness of sound is determined, in turn, by the intensity of the sound waves. Intensity is a measure of the amount of energy in sound waves. The unit of intensity is the decibel (dB) . Q: What is measured by the intensity of the sound waves? Choices: - inputs - tone - pitch - loudness A:
Answer:
loudness