Increases in plant length (such as overall height or branch and root length) result from cell division that occurs
A) only in apical meristems at shoot and root tips. B) only from lateral meristems.
C) equally throughout the plant body. D) from cell division of differentiated cells.
A
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Which aspect(s) of chromosome behavior is/are primarily responsible for the tremendous amount of genetic variability associated with sexual reproduction?
A) segregation of sister chromatids at anaphase II of meiosis B) segregation of homologous chromosomes at anaphase I of meiosis C) crossing-over between homologous chromosomes during prophase I of meiosis D) independent alignment of different homologous pairs on the metaphase I spindle E) both crossing-over between homologous chromosomes during prophase I of meiosis and independent alignment of different homologous pairs on the metaphase I spindle
Which of the following groups are considered chordates but are lacking the vertebral column trait?
A. cephalochordates & chondrichthyes B. urochordata & cephalochordates C. sea squirts & chondrichthyes D. osteichthyes & urochordata
6. When does a health care agent have the right to make health care decisions for you?
If the agent judges that you can’t decide for yourself. If your family member decides it is best for you. If your doctor decides you are unable to make your own decision. Never; the health care agent has no power on the treatment you receive.
Pasteur used swan-neck flasks in his experiments to prove that
A) Microorganisms could be grown in laboratory infusions B) Microbial fermentation could be used to make wine C) Microorganisms could cause disease D) Air had 'vital forces' capable of spontaneous generation E) Dust in air was a source of living microorganisms