Tapeworms do not have a
a. reproductive system.
b. head.
c. excretory system.
d. digestive system.
b
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Food-borne pathogens are most commonly identified by
A. standard culture techniques. B. polymerase chain reaction (PCR). C. pulsed-field gel electrophoresis. D. None of the choices are correct.
Which tree species was most often killed by A. ostoyae in control forests? Which was least affected by the fungus? For the most affected species, what percentage of deaths did A. ostoyae cause in control and in experimental forests? Looking at the overall results, do the data support the hypothesis? Does stump removal reduce effects of A. ostoyae? These data best support the hypothesis that:
1.Armillaria ostoyae acts as a parasite of living trees because it draws nutrients from them.
2.Pine trees had the highest overall mortality rate
3.Birch trees were rare in this forest.
4.Stump removal reduced the effects of A. ostoyae.
Neurotransmitters are released into a small gap between neurons called a synaptic ___________
Fill in the blank(s) with the appropriate word(s)
The chlorophyll known as P680 has its electron "holes" filled by electrons from
a. photosystem I b. photosystwm II c. water d. NADPH e. accessory pigments