Archegonia _____
A) are the sites where male gametes are produced
B) may contain sporophyte embryos
C) have the same function as sporangia
D) make asexual reproductive structures
B
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Predict what would happen if a chromosome only connected to the mitotic spindle at one of its kinetochores?
A. One of the daughter cells would have an extra copy of that chromosome. B. The sister chromatids would not separate. C. The chromosome would not line up properly at metaphase. D. All of the above are correct.
A cleaning solution used on the venipuncture site to avoid skin contamination of the blood sample is called a(n):
a. surfactant. b. disinfectant. c. biocide. d. antiseptic.
Which of the following is NOT a developmental process that explains the relationship beteween the notochord, somites, and limb muscles?
A. induction B. proliferation C. differential expansion D cell movement E. differentiation F. all of these describe the relationship between somites and limb development
Which of these statements is NOT true about complement?
A. Complement is required for formation of antigen-antibody complexes. B. Complement is a complex of plasma proteins that are activated in the presence of pathogens. C. Complement attracts phagocytes to the bacterial cell and increases its likelihood of being engulfed. D. Complement forms holes in bacterial membranes and allows fluid and salts to enter a bacterial cell.