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jok3333 [9.3K]
3 years ago
6

1) The length of one day on Earth is determined by how long it takes

Biology
1 answer:
Makovka662 [10]3 years ago
7 0
The first question is d and the second is a


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The mechanical stress applied to bones during moderate physical exercise leads to
Vadim26 [7]

Answer;

-Bone tissue becoming stronger.

The mechanical stress applied to bones during moderate physical exercise leads to bone tissue becoming stronger.

Explanation;

-Bones and muscles both become stronger when muscles push and tug against bones during physical activity.Swimming and bicycling are not weight-bearing activities, so they do not directly help build bones. But swimming and bicycling do help build strong muscles, and having strong muscles helps build strong bones.

-Weight-bearing physical activity causes new bone tissue to form, and this makes bones stronger. This kind of physical activity also makes muscles stronger. Bones and muscles both become stronger when muscles push and tug against bones during physical activity.

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2 years ago
The symptoms of tetanus are caused by the neurotoxin ________.
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Answer:

The correct answer is the neurotoxin known as tetanospasmin toxin.

Explanation:

Tetanus is a disease caused by a bacteria known as clostridium. The bacteria are found in soil, manure, dust, and saliva. It can enter the host body by a cut or rusted or dusty nail or burn. It causes muscle spasm or jaw locking or bone locking.

It releases the neurotoxin that is tetanospasmin toxin that inhibits the secretion of γ-aminobutyric acid (GABA) and results in a variety of symptoms associated with tetanus.

Thus, the correct answer is the neurotoxin known as tetanospasmin toxin.

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Muscle cells in athletes often have more mitochondria than muscles cells in non athletes based on the observation it can be infe
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It can be inferred that muscle cells in athletes produce more ATP than muscle cells of those who live sedentary lifestyles.
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Assisted living is the term used to describe when an elder moves into a younger relative's home.
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The answer is false. 

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Water vapor exits and CO2 enters a leaf through the
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It enters through the stoma.

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