Animals with greatest number of similarities are grouped together in a/an___________?
Correct answer: C. Genus
- A. Phylum
- B. Family
- C. Genus
- D. Order
Explanation
A genus groups closely related species and therefore generally contains organisms with more similarities than a broader rank such as family, order or phylum. For example, members of Homo share more characteristics than all members of the family Hominidae. Students may choose b because a family also contains related organisms, but it includes several genera and is less specific than genus.
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About Classification of Biological Molecules
Biological molecules are classified as carbohydrates, lipids, proteins and nucleic acids, with water, minerals and vitamins also supporting cellular processes. The key distinctions involve their monomers, chemical bonds, structures and functions, including glucose and starch, fatty acids and triglycerides, amino acids and polypeptides, and nucleotides in DNA and RNA.
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