Which of the following is not a skill scientists use to learn about the world?

Option D

Explanation:

Options for the question are -

a.

Predicting

c.

Inferring

b.

Observing

d.

Scientists use all of the above skills

Solution -

Any scientific research or experiment comprises of following five major steps and all these steps include the skills mentioned in the options. These steps are –  

a)Observation – A researcher observes his/her surrounding and the activities going around him/her.  

b)Questioning – He/she then has doubts on several parameters such as how something is happening, what are the scientific rules governing it etc.  

c)Proposing a hypothesis – Based on the question, a researcher proposes or predicts a cause of the event and hence develops a hypothesis.  

d)Testing the hypothesis – A researcher test whether his/her predictions are up to the mark or not

e)Based on the test result, he/she infer the possible cause of event or any happening in his/her surrounding.  

Hence, option D is correct

explanation:

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nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides