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nignag [31]
3 years ago
10

You are walking to school when you encounter a strange barking dog. you tense up and contemplate whether you should run away. wh

ich nervous system is responsible for this "fight or flight" reaction?
Biology
2 answers:
myrzilka [38]3 years ago
6 0
The sympathetic nervous system
olasank [31]3 years ago
5 0
<span> Sympathetic........</span>
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The bottom line difference between passive and active transport through a cell membrane’s is
Ahat [919]
<h3><u>Answer;</u></h3>

Active transport uses energy and passive transport does not

<h3><u>Explanation</u>;</h3>
  • <u>Passive transport occurs when materials move across cell membranes without using cell energy (ATP). </u> Examples of passive transport include; diffusion, facilitated diffusion, and osmosis. It moves small molecules like water, oxygen, carbon dioxide and glucose.
  • <em><u>Active transport on the other hand involves the movement of materials across the cell membrane that requires the use of cell energy (ATP)</u></em>.
  • In other words the difference between active transport and passive transport is that passive Transport moves ions from high concentration to low, using no metabolic energy while active Transport moves ions from low concentration to high, using metabolic energy in the form of ATP.
8 0
3 years ago
How does nuclear energy use differ from geothermal and solar energy use?
inessss [21]

Answer:

C- Geothermal and solar energy are both renewable, while nuclear energy is not.

Explanation:

edge 2021

3 0
3 years ago
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BRAINLIESTTT ASAP!!!!<br><br> Describe the structure and layers of the sun.
nikklg [1K]
The layer of the sun is in three equally side the sun the moon and the galaxy
5 0
3 years ago
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Using sophisticated molecular cloning techniques, you have isolated the genes for two serotonin transporters, called TransA and
kherson [118]

Answer:

Vesicles  

Explanation:

Serotonin is a neurotransmitter that transports signals or messages between neurons.

Most neuronal cells have vesicles in their interior, which are organelles that store neurotransmitters for exportation -by exocytosis- or from recycling -by endocytosis-. These vesicles also protect the neurotransmitter from the enzymatic action.

Vesicles form in the cellular soma, from where they are transported to nervous terminals. Once the vesicle releases the neurotransmitter to the intercellular space, their membrane remains available in the plasmatic membrane to be reused.

The neurotransmitter concentration in the vesicle interior is related to the storage system and the <u>transport system</u>. There are <u>specialized transporter proteins in the vesicle membrane</u> that are involved with the introduction of the molecule to the organelle.

In the exposed example, transporter Trans B might be located in the vesicle membranes, and hence could be found in the cytosol of the cells.

4 0
3 years ago
Meiosis produces four nuclei that have different chromosome numbers
pentagon [3]

Answer:

I would say true

Explanation:

they do produce 4 different chromosomes

8 0
2 years ago
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