BIOLOGY HIGH SCHOOL

Which of the following is a radical? O H OH H2O

Answers

Answer 1
Answer:

Answer;

OH-

Explanation;

  • Radicals are molecules that contains at least one unpaired electron. They are formed when a single covalent bond breaks to leave an unpaired electron on each of the two species created by the breaking of the bond.
  • The answer for the question is OH, OH is an example of a radical, other common examples NH4+, NO3-, etc.
  • O, and H, are atoms. An atom is the smallest particle of an element that can take part in a chemical reaction.
  • H2O, is a molecules, A molecules is a substances made of two or more atoms. It is the smallest particle of a chemical element or a compound that has chemical propertie of an element or a compound.
Answer 2
Answer: If a radical is defined as a molecule with unpaired electrons,then the answer is OH.However,if you take the more general definition(an atom or molecule with unpaired electrons),then OH,O and H are all radicals.

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Answers

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Which of the following is one observation that darwin made as he developed his theory of natural selection

Answers

ur answer would be more organisms are born than can survive. 
hope  i helped..!!

Using the DNA base sequences below, identify which two species are more closely related. Support youranswer.
Species A: CAC GTG GAC AGA GGA CAC CTC
Species B: CAT GTG GAC AGA GGA CAC CTC
Species C: CAC GTA GAC TGA GGA CTT CTC

Answers

Species A and B would be the most similar because there is only one mutation between the two of them located in the first codon.

Answer:

c

Explanation:

Which of the following lists the hierarchy of life from MOST complex to LEAST complex?A) organism, organ system, organ, tissue, cell


B) cell, tissue, organ, organ system, organism


C) organ system, organism, cell, organ, tissue

Answers

Answer:

a

Explanation:

The the single factor tested in an experiment is

Answers

Variable is the single factor tested in an experiment.

Variable is any factor or condition that can be tested, changed, or measured in an experiment. Scientific experiments have various kinds of variables. They include independent variables, dependent variables, constant variables and extraneous variables. The independent variable is the only factor that can be changed in a science experiment.


variable is the single factor
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