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olga55 [171]
4 years ago
13

Simple what first appeared in the proterozoic eon

Biology
1 answer:
dexar [7]4 years ago
5 0

Cyanobacteria, photosynthetic organisms that produce oxygen as a byproduct first appeared.

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Explain what is meant by the semiconservatove model of DNA replication
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Sperm and egg have ___________ the number of chromosomes as a body cell.
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Sperm and egg have 23 the number of chromosomes as a body cell.

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In the open ocean, _____ are the main producers.
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I believe its Phytoplankton.

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If the tubes of the tracheal system in insects were longer, this would _______.
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3 years ago
What would NOT happen if the core body temperature was too low?
dalvyx [7]

During the condition in which the core body temperature was too low, sweat would cool the body as it evaporated will not take place. The correct option is B.

<h3>What is core body temperature?</h3>

The temperature of the internal organs located deep within the body, such as the liver, is referred to as core temperature. The human body's core temperature is kept within a fairly limited range of 36.5-38.5 °C.

In the condition of core temperature very low, hair erector muscles contracts, shivering release energy by muscle contraction, and reduced blood flow through the skin capillaries.

Thus, the option that is not likely to happen is option B.

For more details regarding core body temperature, visit:

brainly.com/question/14643953

#SPJ1

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