Mammalia (mammals) have hair or fur and produce milk
The small cell extensions that beat to create an up-ward current are called microvilli.
<h3>What are microvilli?</h3>
Microvilli are small extensions which are found on the surface of the alveoli of the lungs.
The microvilli play an important role in the lungs as the help to remove particles and mucus that may obstruct the lungs as a result of the upward current they create in the lungs from their beating motion.
Therefore, the paralyzed small cell extensions that beat to create an up-ward current are called microvilli.
Learn more about lung microvilli at: brainly.com/question/12993303
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When a meteoroid passes through earth's atmosphere, it heats up due to air resistance. The heat causes gases around the meteoroid to glow. most meteoroids that enter earths atmosphere disintegrate before they hit the ground.
A because it uses a FAN-BOY
Answer:
Explanation:Spontaneous generation is a body of thought on the ordinary formation of living organisms without descent from similar organisms. The theory of spontaneous generation held that living creatures could arise from nonliving matter and that such processes were commonplace and regular.
