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olga2289 [7]
2 years ago
14

What mineral is released within muscle cells to trigger contraction?

Biology
1 answer:
astraxan [27]2 years ago
3 0

Answer:Troponin

Explanation:

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A color-blind (X-linked recessive) human with Klinefelter syndrome has parents both of whom have normal color vision. 4a. From w
sineoko [7]

The extra X chromosome is received from mother.

<h3><u>Explanation</u>:</h3>

Klinefelter's syndrome is the condition of chromosomal aberration where the person has an extra X chromosome. This means the genotype of the person is 44+XXY and the total chromosome number is 47. This condition is achieved due to inappropriate meiotic division and one of the sperm or ovum has the an extra X chromosome.

Here both the parents are normal in terms of colour vision. So the father cannot have the gene of colour blindness because if it was present, then father would have been colour blind because he has only one X chromosome per cell. So its present in mother who is heterozygous in terms of colour blind gene. So the extra X chromosome also came from her which made the presence of two defective X chromosomes in the offspring and made it colour blind.

5 0
2 years ago
How are biotic factors in the marine ecosystem responsible for bringing carbon-dioxide into the ocean?
Wewaii [24]

Answer:

Marine ecosystem have biotic organisms like phytoplankton and photosynthetic algae that do photosynthesis and converts the atmospheric carbon dioxide into organic matter most of the carbon dioxide is released when other organisms eat phytoplankton and release the carbon dioxide through respiration.

But some of the algae and phytoplanktons die naturally get down to the bottom of the ocean where they make carbon sink. Some organisms accumulate CO₂ in their exoskeleton that is made up of calcium carbonate.  

Therefore this use of carbon by living organisms in oceans brings carbon dioxide from the atmosphere to oceans. This is why the ocean plays a critical role in the carbon cycle and called carbon sink.

7 0
2 years ago
Which unit of the brain is responsible for the sense of balance?
AveGali [126]
The ears are involved in balance, but it's more than just them. 
Your eyes are also important, as well as your body's sense of where it is in space.

4 0
2 years ago
Read 2 more answers
What happens to cells in multicellular organisms as they continue to divide and increase in size?
DiKsa [7]
I think the correct answer from the choices listed above is option C. Cells in multicellular organisms differentiate as they continue to divide and increase in size because cells will now perform special functions and have become different to other cells. Hope this answers the question.
6 0
2 years ago
Read 2 more answers
Indicate the phenotypic ratio of crossing the offspring of the agouti and chinchilla.
devlian [24]

Answer:

Option A is correct.

Explanation:

Phenotype ratio is the number of one phenotype compared to another phenotype.( physical characteristics)

C/cch * C/c

4 0
3 years ago
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