Which cells of the pancreas produce insulin?
a. alpha cells
b. beta cells
c. delta cells
d. F cells
e. gamma cells
B
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True or false: The sequence of species that colonize a recently disturbed area through succession is unpredictable
A. true B. false
Provide a brief explanation of the relationship between amino acid sequences in proteins and
nucleotide sequences in DNA and what they can reveal about evolutionary relationships What will be an ideal response?
The axon branches of a typical neuron terminate at structures called
A) synapses. B) boutons. C) glia. D) nodes of Ranvier. E) the myelin sheath.
If a student was not being careful to pipette up and down several times between dilutions, (added the 1 mL of milk to the 1:10 sample, then withdrew 1 mL from the 1:10 sample and added it to the 1:100 dilution, then withdrew 1 mL from the 1:100 sample and added it to the 1:1000 dilution), what effect would that have on the dilutions being prepared?
A) The number of organisms per dilution would be artificially high B) The number of organisms per dilution would be artificially low