Match each stage with the events listed
a. sister chromatids move apart
b. chromosomes start to condense
c. new nuclei form
d. all duplicated chromosomes are aligned at the spindle equator________ metaphase________ prophase________ telophase________ anaphase
d
b
c
a
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Parasitic species tend to have simple morphologies. Which of the following statements best explains this observation?
A) Parasites are lower organisms, and this is why they have simple morphologies. B) Parasites do not live long enough to inherit acquired characteristics. C) Simple morphologies convey some advantage in most parasites. D) Parasites have not yet had time to progress, because they are young evolutionarily.
Which two factors determine whether a reaction is spontaneous?
a. free energy and activation energy b. activation energy and enthalpy c. enthalpy and entropy d. entropy and activation energy e. activation energy and energy coupling
About 4% of individuals of Northern European descent are carriers for ____, an autosomal recessive genetic disorder
in which a defective membrane transport protein leads to deficient chloride levels in extracellular fluids.
a. Duchenne muscular dystrophy b. phenylketonuria c. achondroplasia d. sickle-cell anemia e. cystic fibrosis
Endomycorrhizal fungi penetrate the plasma membranes of root cells
____________________ Indicate whether the statement is true or false.