The brain and spinal cord are formed from the
A) notochord, which is formed from mesoderm.
B) notochord, which is formed from endoderm.
C) neural tube, which is formed from mesoderm.
D) neural tube, which is formed from ectoderm.
Answer: D
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Which of the following types of evidence is considered the most accurate in classifying organisms, according to the majority of scientists?
A.) Physiological B.) Molecular C.) Linnaean D.) Anatomical
The tendency of an atom to pull electrons toward itself is referred to as its ________________
Fill in the blank(s) with the appropriate word(s).
A bivalent at pachytene contains four chromatids
Indicate whether the statement is true or false
In the cell cycle, DNA is replicated during the G2 phase
__________________ Indicate whether the statement is true or false.