The primary curves of the vertebral column are the
A) cervical, lumbar, and sacral.
B) thoracic and coccygeal.
C) cervical and thoracic.
D) thoracic and sacral.
E) dorsal and ventral.
D) thoracic and sacral.
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Answer the following statements true (T) or false (F)
1. If a cell contains 20 units of DNA during G2, it will have 40 units of DNA during S. 2. During prometaphase, the sister chromatids organize into a single row in the center of the cell. 3. A cell undergoing meiosis that contains sister chromatids may be either haploid or diploid. 4. One major difference between metaphase I and metaphase II is the presence or absence of bivalents. 5. Sexual life cycles include both haploid and diploid stages.
Scientists are now using an expanded definition of intelligence, beyond IQ, called
____________________. Fill in the blank(s) with the appropriate word(s).
With the exception of identical twins, siblings who have the same two biological parents are likely to look similar, but not identical, to each other because they have
A) identical chromosomes but different genes. B) identical genes but different chromosomes. C) the same combination of traits but different genes. D) a similar but not identical combination of genes.
Explain the difference between a theory and a hypothesis, and give an example of each
What will be an ideal response?