A) lose electrons to form positive ions called cations.
Gas chromatography (GC) is a method of separating mixed compounds.
The separation will depend on each compound's retention time. Compounds with
higher molecular weights will elute out slower than those with lower molecular
weight. This is due to their difference in boiling points. The larger the
structure, the higher the boiling point.
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The answer is A. anther and ovary.
The female part of an angiosperm flower is called a pistil and it consists of a style, stigma and ovary. The male part of an angiosperm flower is called a stamen and it consists of an anther and corolla. Thus, among all choices, choice A is the answer.
Choice B - anther is the male part of the flower, but sepal is a protective part of the flower and not reproductive.
Choice D - stigma is the female part of the flower, but sepal is a protective part of the flower and not reproductive.
Choice C - "vary" is not a word, but it is a mistake and it should be "ovary," the answers could be both choice A and C.
Answer: This answer is for all the questions: Chargaff's rules state that DNA from any species of any organism should have a 1:1 stoichiometric ratio of purine and pyrimidine bases (i.e., A+G=T+C) and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine.
Explanation:
