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kakasveta [241]
3 years ago
9

The Hawaiian Islands are home to many endangered species. True or False?

Biology
1 answer:
Phantasy [73]3 years ago
7 0
Yes this is a true statement
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Caffeine aids in the movement of calcium ions across cell membranes by both making it easier for the Ca2+ channels to open and b
Llana [10]

Caffeine cause dose dependent prominent increase in force of contraction and period of contraction of muscle

<u>Explanation:</u>

Caffeine is widely used in foods and drinks. Its long time use can effect central nervous system include lethargy memory, sleep disorder and anxiety.

Increase in concentration of calcium ion will result increase number of power stroke and force for contraction.  However latent period and relaxation period are unaffected by caffeine. Increase in concentration of calcium ion will result increase number of power stroke and force for contraction.

Because of calcium ion release in skeletal muscle, caffeine causes peripheral manifestation such as hyper-reflexia, muscle twitching etc.

High amount of caffeine leads to increase in release of Ca2+ from sarcoplasmic reticulum. It increases tension development in single tetanic contraction and re-initiate maximum tension in fatigue single myofibre by restoring Ca2+ release from sarcoplasmic reticulum to non-fatigued levels.

8 0
3 years ago
Which endocrine gland would provide a burst of energy to a person moving out of
algol [13]

Answer:

the correct answer would be D

Explanation:

3 0
2 years ago
How can dominant-lethal alleles be passed down? (Choose the BEST answer!) a. They can’t, as they are lethal.b. They can be passe
Andreyy89

Answer: b

Explanation:

Dominant lethal alleles can be passed down if the individual can live to a reproductive age. The individual can then have children and can possibly pass down the lethal allele

8 0
3 years ago
What are three molecules that diffuse freely in and out of a cell
Lunna [17]

So it's going to be obviously oxygen XD        ....so that's one

Next, it's going to be carbon dioxide, since it has to exit the cell, because it is a waste product            ...so that's two

Finally, it's also going to be something you drink everyday.

*whispers* it's water XD      because of osmosis


So recap:

1) Oxygen             2) Carbon Dioxide        3) Water


hope that helps!! :D


4 0
3 years ago
What is a major disadvantage of environmental science?
dangina [55]

Answer:

you wont be able to conduct experiments with independent variable because your not to control what happens in the enviroment. like rain or sunlight

Explanation:

7 0
3 years ago
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