Modern biologists use the term chromosome to describe _____.
A) a cell's DNA when it's physically located within the nucleus
B) DNA when its two strands have separated from each other
C) the DNA when visible with a microscope inside a dividing cell
D) double-stranded DNA and its protein complement, irrespective of its form
E) the DNA when it's dispersed and functioning within the nucleus
Answer: D) double-stranded DNA and its protein complement, irrespective of its form
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Which group has the largest number of chromosomes?
a. hepatophytes b. gymnosperms c. angiosperms
d. lycophytes e. charophytes
What conclusion can be drawn regarding a community in which many species are involved in a food
web?
a. It is more fragile since organisms have more than a single food source. b. It is more fragile since organisms have only a single food source. c. It is more stable since organisms have more than a single food source. d. It is more stable since organisms have only a single food source. e. It is very prone to damage from human interference.
Which cells require specific antigens to become activated?
a. dendritic b. B and T cells c. macrophages d. phagocytes e. cytokines
Zombies are not really living because they cannot reproduce. Living organisms must be able to reproduce.
a. true b. false