A chromosome contains one long DNA strand.
B.
C) Natural selection
When something happens in nature and something changes all of a sudden, the animals tend to adapt to what gives them more chances of survival. As a result, a large amount of the population would attempt to adapt in a way that helps them survive.
Answer:
Oxygen (O) , Carbon (C) , Hydrogen (H) , Calcium (Ca) , Iron (Fe) , Sodium (Na) , Iodine (I) , Magnesium (Mg) , Selenium (Se)
<span>Anaerobic </span><span>respiration that does not require oxygen
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To organize microtubules and provide structure for the cell, as well as work to pull chromatids apart during cell division
