The __________ is a word added to the genus name to identify which one of several species within the genus we are discussing.
A. specific epithet
B. scientific name
C. family
D. subspecies
A. specific epithet
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A layer of lipoprotein and glycoprotein that covers the outer surface of some viruses is the
A. capsid. B. casing. C. envelope. D. membrane. E. viroid.
Which of the following molecules are outputs of the Calvin-Benson cycle and inputs to the light-dependent reactions?
a. ATP and NADPH b. glucose c. CO2 d. ADP and NADP+
While innate immunity is ancient and universal amongst animals, the adaptive immune system is generally considered to be unique to the vertebrates. However, some researchers have suggested, with much controversy, that invertebrates may have a form of adaptive immunity as well. What sort of evidence would be required to fully demonstrate such a claim? (Check all that apply.)
_____ B and T cells _____ CD4 receptors _____ efficacy of vaccination _____ highly variable molecules that can bind various antigens _____ identified cells that are necessary to provide acquired immunity _____ immunoglobulin molecules _____ resistance upon second exposure to a pathogen _____ specific resistance to one strain but not another after exposure _____ thymus gland _____ Toll-like receptors
When sodium ions flow into the axon cytoplasm, ____
a. the membrane potential reverses b. the cytoplasm becomes more negatively charged c. the interstitial fluid becomes more positively charged d. an action potential is reversed e. the membrane potential is re-established