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Questions in biology

[Open]The function of a neurotransmitter is to: A. block the effectiveness of a drug B. enhance the euphoria of a drug C. transmit nerve impulses in the brain D. prevent a person from developing an addiction

[Open]The lancelets are referred to as chordates because they do not have backbones. tunicate decapods echinoderm invertebrate

[Open]In one page, compare and contrast the processes of aerobic and anaerobic respiration.

[Open]Marta is infected with a sexually transmitted disease. Diagnosis reveals that she is infected with which organism that causes cervical cancer?

[Open]Which is the central element for all living things? A. carbon B. hydrogen C. oxygen D. nitrogen

[Open]Which processes release carbon dioxide into the air? A. combustion and photosynthesis B. combustion and respiration C. digestion and respiration D. photosynthesis and respiration

[Open]An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Open]Through which conversion is energy released? A. ADP to ATP B. ATP to ADP C. NADP${}^{+}$ to NADPH D. $CO _2$ and $H _2 O$ to $C _6 H _{12} O _6$ and $O _2$

[Open]Which type of mutation causes sickle cell anemia?

[Open]Bone is a type of A. muscle B. connective C. epithelial D. nervous