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Firlakuza [10]
3 years ago
13

NEED ANSWER QUICK!!!!!!! Could humans survive on Earth over two-and-a-half billion years ago, before the emergence of plants? Wh

y or why not?
Biology
1 answer:
emmasim [6.3K]3 years ago
3 0

Answer:

I'm say yes

Explanation:

because we had animals to survive off of

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The frontal lobes also include the primary ____________ which controls voluntary motor functions.
lakkis [162]

Answer:

The correct answer will be- primary motor cortex

Explanation:

The motor cortex is the portion of the brain present in the precentral gyrus of the frontal lobe of the brain.  The motor cortex is thought to be involved in the planning actions and control voluntary actions.

The motor cortex is divided into three regions: premotor cortex, primary motor cortex  and supplementary motor area.

The primary motor cortex is the region of the motor cortex which controls the voluntary movements in the human body by generating the impulse.

Thus, the primary motor cortex is the correct answer.

5 0
3 years ago
What structures to eukaryote cells have that prokaryotes do not?
Sergio [31]

Answer:

The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is where eukaryotes store their genetic information.

Explanation:

prokaryotes have no nucleus

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2 years ago
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Answer:

The function of the pleura is to allow optimal expansion and contraction of the lungs during breathing. The pleural fluid acts as a lubricant, allowing the parietal and visceral pleura to glide over each other friction free. This fluid is produced by the pleural layers themselves.

8 0
3 years ago
How can a cell be defined?
Vsevolod [243]
A cell is the smallest basic unit of life
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B is correct, Organisms in the same group have similar characteristics
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