Amniotes differ from earlier vertebrates by

a. their large size.
b. their three-chambered heart.
c. their internal fertilization.
d. the possession of a slimy skin.
e. having external scales


C

Biology & Microbiology

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What Mendel called “factors” we now call ____

A. nucleotides B. DNA C. chromosomes D. genes E. bases

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Which of the following has increased as a direct result of stratospheric ozone depletion?

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Could your lifestyle or the food you eat influence evolution? How?

What will be an ideal response?

Biology & Microbiology