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Harman [31]
3 years ago
14

Serafina is preparing a lecture on the benefits of exercise and she will highlight that exercise orders up mood-boosting chemica

ls such as _____.
Biology
1 answer:
Andrews [41]3 years ago
7 0
The answer is serotonin. Serotonin is a significant chemical neurotransmitter in the human body. Serotonin that is used in the brain must be made within it. It is believed that serotonin can touch mood and social performance, hunger and ingestion, slumber, reminiscence and sensual desire and purpose.
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What would be the first thing you would do if your clothes caught fire while working in a laboratory?
Inessa [10]

Answer:

If your clothes caught on fire and you had the oppertuinity to quickly take it off it would be better but in this case.

Explanation:

B, drop and roll on the floor till the fire is gone

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3 years ago
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PLEASE HELP!!!! In order for air to flow out of the lungs, pressure outside must be_________pressure in the lungs.
Alex777 [14]

Answer:

(A) greater than

<u><em>Please mark as brainliest </em></u>

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3 years ago
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for which of the following reactions are both reactants and products likely to be found when the reaction appears to be complete
faltersainse [42]
The more feasible reaction is:
2Mg + O₂ → 2MgO

This is because the bond between hydrogen and fluorine is very strong so it does not dissociate easily.
8 0
3 years ago
to stimulate muscle contraction, acetylcholine is released from the ___________ into the synaptic cleft.
Hunter-Best [27]

Acetylcholine is the fundamental neurotransmitter that transmits information from nerve cells to muscles. It is released by synaptic vesicles and binds to receptors on the muscle membrane.

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  • Synaptic vesicles are a type of small organelle clustered at presynaptic terminals.

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7 0
2 years ago
How did Mendel’s experiments provide evidence for the principle of independent assortment?
romanna [79]
Mendel selected a group of dwarf plants and sel pollinated them by dusting mature pollen grains onto them. He then collected the resulting seeds and planted them and noticed these seeds germinated and grew into dwarf plants only.
He also selected tall plants and self-pollinated them. the resulting seeds he observed that they grew into a micture of tall and dwarf plants. He took the seeds of tall plants only and repeated the experiments for many generations until he obtained only tall plants.
He then crossed cross-pollinated purebreeds tall garden pea with pure breed variety. He planted the seeds and observed the offsprings were all tall plants. He crossed two of these tall offsprinf from the F1 and planted the resulting seeds. the second filial generation consisted of a mixture of tall and dwarf plants.
He counted these plants and noted that the ratio of tall to dwarf was about 3:1. From this, he postulated that there are now laws governing inheritance.The law of independent assortment and law of segregation.
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3 years ago
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