Which of these passes through the glomerulus without being filtered out of the blood?
a. potassium
b. sodium
c. hemoglobin
d. chlorine
c. hemoglobin
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When a characteristic is shared by species that do not share a common ancestor this is caused by which of the following?
a. the evolution of homologous characteristics b. the evolution of vestigial characteristics c. the change in allele frequency in the gene pool of the species d. the convergence of form of organisms that share similar environments
Salivary amylase begins the breakdown of what substance?
a. amino acids b. lipids c. starch d. protein
What do rod and cone cells do in the eye?
What will be an ideal response?
Choose the correct sequence of events involving allopolyploidy that gave rise to modern tobacco.
A. duplicate gene loss, hybridization, chromosome doubling B. hybridization, duplicate gene loss, chromosome doubling C. hybridization, chromosome doubling, duplicate gene loss D. chromosome doubling, hybridization, duplicate gene loss