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vesna_86 [32]
3 years ago
11

What part of the brain do we use when initiating skeletal muscle movement?

Biology
1 answer:
slega [8]3 years ago
8 0
The PRIMARY MOTOR AREA is the part of the brain we use to initiate skeletal muscle movement.

The primary motor cortex, or M1, is located in the frontal lobe of the brain, along the precentral gyrus. Its primary role is to generate neural impulses that control the execution of movement.
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In corn, small pollen (sp) is recessive to normal pollen (sp+) and banded necrotic tissue, called zebra necrotic (zn), s ssive t
alex41 [277]

Answer:

Option B

Explanation:

Please see the attached image

Given -

Allele for small pollen is "sp"

Allele for normal pollen is "sp+"

and "sp+" is dominant over "sp"

Allele for zebra necrotic tissue is "zn"

Allele for normal necrotic tissue is "zn+"

and "zn+" is dominant over "zn"

Cross is carried out between

sp+ sp zn+ zn x sp+ sp zn+ zn

The gametes of the parent cells are -

sp+ zn+, sp+zn, spzn+, spzn

The cross would be as follows

         

sp+ zn+ sp+zn spzn+ spzn

sp+ zn+ sp+ sp+ zn+ zn+sp+ sp+ zn+ znsp+ sp zn+ zn+ sp+ spzn+ zn  

sp+zn sp+ sp+ zn+ znsp+ sp+ zn znsp+ sp zn+ zn sp+ sp zn zn

spzn+ sp+ sp zn+ zn+sp+ sp zn+ znsp sp zn+ zn+ sp sp zn+ zn

spzn sp+ sp zn+ zn sp+ sp zn zn sp sp zn+ zn sp sp zn zn

Hence, option B is correct

7 0
3 years ago
Which of the following is true regarding extinction?
mars1129 [50]
C. Single events or several causes working together to produce extinction in a short period is referred to as mass extinction.

<span>Example:
</span><span>Destruction of forests, mountains, and bodies of water to satisfy human needs result to the imbalance of nature which also give rise to global warming.

</span><span>Animals and plants have lost their habitats. They lost their means to live. They lost their food sources and they suffer and die because of humans irresponsible acts.</span>
6 0
3 years ago
What is the highest energy phase naturally on earth.
emmasim [6.3K]
The answer would be gas I believe 
3 0
3 years ago
What state of mind does alcohol initially produce in most adults after the first drink?
Cerrena [4.2K]

Answer:

euphoria

Explanation:

When a person takes alcohol, he/she feels relaxed and euphoric. This happens because of the release of endorphins. Endorphins are a chemical that produces the feeling of pleasure and happiness. After the first drink, the content of alcohol in blood is 0.05-0.06% which is sufficient to develop euphoric feeling.  

However, some of the consumers have also claimed that it act as a depressant.

8 0
3 years ago
Which organ controls breathing? It’s not lungs?!
DiKsa [7]

The diaphragm ;) it controls breathing. it's what helps your lungs function.


4 0
3 years ago
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