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erastova [34]
3 years ago
15

How many protons are in an atom of tin?

Biology
2 answers:
stiv31 [10]3 years ago
5 0
50 protons 50 electrons 69 neutrons
Gre4nikov [31]3 years ago
3 0
There are
50 protons in tin
50 electrons in tin
And 69 neutrons
Hope this helps
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Answer and Explanation:

The pectorals major is an enormous, fan-formed muscle covering the chest. It is included clavicular and sternocostal areas. Adducts and turns the upper arm. Transverse adduction and flexion of the pectoralis major is smooth movement. You can see the muscles extending far and contracting back effectively.  

The biceps brachii is a two-headed muscle. Despite the fact that most of the bulk is found anteriorly to the humerus, it has no connection deep down itself. The activity is Supination of the lower arm. It likewise flexes the arm at the elbow and at the shoulder. In the biceps brachil there isn't a lot of expansion found in the muscle contrasted with the pectoralis major.

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Answer:

<u>Option-</u>A

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I need help on this question in biology and biology is hard and confusing
Yuliya22 [10]

Answer:

b. the new species must be unable to breed with the original species.

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These barriers are broadly classified as pre and postzygotic. Prezygotic barriers include the following:

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Speciation, the production of an entirely new species, requires a maintenance of genetic diversity. Therefore, the new and original species cannot interbreed as this would limit the gene pool and decrease genetic variations.

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Explanation: The answer is D. An observation that has a number associated with it. I would explain further, but it is pretty self explanatory.

<em>Good luck!</em>

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