Answer the following question given this paragraph: The majority of amphibian species go through a larval stage that is very different from the adult form, as you can see from the frog in Figure below . The early larval, or tadpole , stage resembles a fish. It lacks legs and has a long tail, which it uses to swim. The tadpole also has gills to absorb oxygen from water. As the larva undergoes metamorphosis , it grows legs, loses its tail, and develops lungs. These changes prepare it for life on land as an adult frog. Q: What is another term for the early larval stage of a frog? A:

OPTIONS:
- young
- egg
- ovary
- tadpole

Answer: tadpole

Answer the following question given this paragraph: The visible range of light (i. e. the range of wavelengths that our eyes can detect) is a very narrow piece of the full EM spectrum. In the visible range our eyes differentiate between the different wavelengths by producing 'color' for them. When we observe something that is green, it is green to us, because the wavelength of the light hitting our eyes is around 550 nm. If the wavelength of light is slightly larger than this it starts to look red, if it is slightly smaller it looks blue. White light is the combination of all the colors. Black light is the absence of EM waves in the visible spectrum for human beings. Q: What color light is actually the absence of electromagnetic waves in the visible spectrum, for humans? A:

OPTIONS:
- ultraviolet light
- infrared light
- blue light
- black light

Answer: black light

Answer the following question given this paragraph: Mid-wavelength electromagnetic waves are called light. Light consists of visible, infrared, and ultraviolet light. Humans can see only visible light. Infrared light has longer wavelengths than visible light and is perceived as warmth. Ultraviolet light has shorter wavelengths than visible light and has enough energy to kill bacteria. It can also harm the skin. Q: What type of light has shorter wavelengths than visible light and has enough energy to kill bacteria? A:

OPTIONS:
- luminescence
- infrared
- reflected light
- ultraviolet

Answer: ultraviolet

Answer the following question given this paragraph: Some insects, such as aphids, have piercing-sucking mouthparts. Other insects, like grasshoppers, have chewing mouthparts. Q: What kind of mouthparts do aphids have? A:

OPTIONS:
- chewing mouthparts
- sponging mouthparts
- siphoning mouthparts
- piercing-sucking mouthparts

Answer:
piercing-sucking mouthparts