Bacteria cannot be classified using the biological definition of a species for which reason?
What will be an ideal response?
Bacteria are asexual.
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Distinguish between a homosporous and a heterosporous type of life cycle.
What will be an ideal response?
How must spindle microtubules attach to chromosomes during anaphase of meiosis I?
A. Microtubules only attach to one kinetochore per homologous pair. B. Microtubules attach to the chiasma. C. Microtubules attach using their minus (slow growing) ends. D. Microtubules attach at the centrosomes.
The kangaroo rat gets the bulk of its water from
a. drinking liquids. b. absorption through its skin. c. ingesting food. d. oxidative reactions in its cells. e. reuptake of water from urine.
The main signaling cascade for cell division and differentiation is the ____ cascade
a. cAMP b. MAP kinase c. phosphoinositol d. phospholipase C e. calcium-calmodulin