Fossils are considered to belong to the genus Homo if which of the following is true?

A. Tool use is evident.
B. The brain size is 600 cc or larger.
C. The jaw and teeth are human like.
D. All of the choices are characteristics of this group


Answer: D

Biology & Microbiology

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A codon consists of two nucleotides

Indicate whether this statement is true or false.

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Which of the following statements is incorrect regarding protein structure?

A. The folding of a protein to form its active site creates its tertiary structure. B. The sequence of nucleotides determines the primary structure of a protein. C. Proteins, such as antibodies that are comprised of multiple polypeptide chains, have quaternary structure. D. Beta-pleated sheets are a type of protein secondary structure.

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Photosynthesis is to the chloroplast as ________ is to the mitochondrion

Fill in the blank with correct word.

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To reduce the extent of this damaging phenomenon, many power plants have been required to install systems to remove and capture sulfur dioxide from their emissions

A) acid rain B) eutrophication C) deforestation D) thermal inversion E) ozone depletion

Biology & Microbiology