The scientific study of the diversity of organisms and the evolutionary relationships between them is
referred to as:
a. taxonomy.
b. ecology.
c. biological classification.
d. evolutionary biology.
e. systematics.
E
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Which is the dominant structure during the life cycle of a fern?
1.gametophyte
2.sporophyte
3.archegonium
4.sporangium
Which describes the ABO blood group system?
A) Incomplete dominance B) Multiple alleles C) Pleiotropy D) Epistasis
Light skin is most adaptive in northern latitudes because
A) dark skin allows folate destruction when UV radiation is less. B) the greater UV radiation in northern latitudes destroys vitamin D. C) increased melanin causes an increase in the risk of melanoma. D) light skin in northern latitudes allows adequate folate for fetal development.
Which of the following phenomena produces magnification?
A) the wavelength of a radiation source B) the refraction of radiation as it passes through a lens C) the thickness of a microscopic specimen D) the numerical aperture of a lens E) the length of an objective lens