Flatworms only has one opening that they use for digesting and excretion of wastes. They do not have a true body. The opening is contains a part that is used to vacuum in food called flukes which can have a pharynx. Flatworms are flattened invertebrates. That lives as a parasite.
Answer: [A]: "axon" .
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"The <u> axon </u><u /> is a thin fiber that carries signals away from the cell body."
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Answer:
2.infrared
Explanation:
Infrared radiation or infrared light is electromagnetic radiation.
Infrared A radiation (IR-A) accounts for almost a third of total solar radiation, while UVA and UVB radiation make up only seven percent of the total solar spectrum.
Of the total solar energy that reaches the Earth's surface, the largest part of the radiation of as much as 54-56 percent is IR radiation, 39 percent is visible light and about five to seven percent is UV radiation.
