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mina [271]
3 years ago
9

Is this statement true or false? The period before we have written records is called prehistory. true o false​

Biology
2 answers:
omeli [17]3 years ago
7 0

Answer:

true

Explanation:

mixas84 [53]3 years ago
5 0

Answer:true

Explanation:

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Explain the following statement: Volcanic eruptions aid in the creation of an atmosphere.
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Answer:

Explaination: When volcanoes erupt, they are helping in the atmospheres's creation.'

I <u><em>might </em></u> be wrong, correct me if I am :)

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adoni [48]
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Your heart pumps blood at variable rates depending on your degree of physical activity or neural/hormonal activity (this is call
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Explained

Explanation:

No, Homeostatic regulation requires Three components namely, a receptor, a control center and an effector. Without a receptor, there cannot be homeostatic regulation. Even though it seems that heart rate varies and returns to some number, this is not technically homeostatic regulation.  Blood pressure is homeostatically regulated - it has baroreceptors that monitor pressure, the brainstem that receives the information and nerves that then activate blood vessels to constrict or dilate to correct pressure (as well as other effectors) - but heart rate is not. Heart rate is not monitored by any neuron. Absolute water content of the body is not homeostatically regulated either - no neuron detects the number of water molecules, although neurons do detect the relative saltiness of the body.

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3 years ago
The diagnostic term for a disease characterized by early senility, confusion, loss of recognition of persons or familiar surroun
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4 0
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8 molecules would result, since 2^3 = 8. Each time PCR is performed, the orginal number of molcules double.
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3 years ago
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