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nekit [7.7K]
3 years ago
11

What is true about electromagnetic waves from the sun? A. They travel through space without a medium B. They consist of electric

change emitted by the sun C. They are attracted to Earth's north and south magnetic poles D. They consist entirely of infrared waves
Biology
1 answer:
Cloud [144]3 years ago
3 0

Answer:

Option A) is correct.

Explanation:

Electromagnetic waves refer to waves that are created due to vibrations between a magnetic field and an electric field.

Electromagnetic waves do not require a medium to travel through space without a medium. Electromagnetic waves can travel through air,  vacuum of space and solid materials.

So,

Option A) is correct.

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In addition to vocalization, how would a mother sea lion locate her pup
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Answer:

In addition to vocalization, a mother sea lion locate her pup using a variety of behavioral signals such as moving inside their colony, returning to a familiar location within the colony where she frequented to feed her pup, visual cues and olfactory cues like smelling the approaching pups.

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After the return of mother sea lions to the rookery from their searching for food (foraging), the mother-pup pairs identify and locate each other through the exchange of vocalizations. In addition to vocalization, the mothers often return to a home spot (familiar location within their colony where a female frequented to feed her pup), move inside the colony and also use visual and olfactory cues like smelling the approaching pups to correctly identify their pup. Also, the return of the mother to a familiar home spot provides the pup with spatial and geographical memory cues.

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