It seems to have choices. The exposure mutagens may lead to the mutation. When the mutation add up to a certain amount and can lead to cancer. So exposure mutagens will increase the cancer risk.
Answer:
Mountain ecosystem, complex of living organisms in mountainous areas.
Answer:
A. It allows plants to use nitrogen to grow.
Explanation:
However, plants can't directly use nitrogen to grow. The bacteria need to convert atmospheric nitrogen ( N2 gas) into a form that plants can use.
Nitrogen fixation is a symbiotic relationship between plants and microorganisms of nitrogen fixers, which in the process of symbiosis perform the binding of nitrogen, which enters the earth from the air (atmosphere).
It is a reduction process of converting the gaseous form of nitrogen from the air into the ammonia form that is available to plants.
endoplasmic reticulum
Protein folding occurs in a cellular compartment called the endoplasmic reticulum. This is a vital cellular process because proteins must be correctly folded into specific, three-dimensional shapes in order to function correctly.
Answer: <span>Superior constrictor
</span>
<span>Superior constrictor inserts in the median raphe attached to the occipital bone.
The median raphe has more muscles( </span><span><span>middle and inferior constrictor)</span> inserted but this is the only one next to the </span>occipital bone.
<span>All their function is the same which is constricting the pharynx to propel bolus into esophagus.</span>
