The formation of tissues and organs in ordered
spatial patterns begins with
a. fertilization.
b. gamete formation.
c. embryonic induction.
d. cytoplasmic localization.
e. morphogenesis.
Answer: d
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How are the bryophytes and seedless vascular plants alike?
A) Plants in both groups have vascular tissue. B) In both groups, sperm swim from antheridia to archegonia. C) The dominant generation in both groups is the sporophyte. D) Plants in both groups have true roots, stems, and leaves.
The chemical nature of endotoxins is that of a
A. protein. B. nucleic acid. C. lipid. D. lipopolysaccharide.
Myeloid stem cells give rise to all formed elements in the blood EXCEPT
A. lymphocytes. B. erythrocytes. C. basophils. D. monocytes. E. platelets.
In the sexual reproduction of sac fungal yeasts, four haploid nuclei give rise to how many spores within the ascus?
A. Two B. Four C. Eight D. Ten E. Sixteen