A pyrimidine or purine base that has been joined with a ribose or deoxyribose sugar moiety is now termed a ________.

Fill in the blank(s) with the appropriate word(s).


nucleoside

Biology & Microbiology

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Which of the following is at the highest energy level?

A. A reaction center chlorophyll that has received the energy from a blue-light photon B. A reaction center chlorophyll that has received the energy from a red-light photon C. A reaction center chlorophyll that has received the energy from a green-light photon

Biology & Microbiology

When faced with a sudden drop in environmental temperature, an endothermic animal will ________.

A. experience a drop in its body temperature B. wait to see if it goes lower C. increase muscle activity to generate heat D. add fur or fat to increase insulation

Biology & Microbiology

What is a nerve?

A) a bundle of neurons B) a chain of neurons C) a sensory synapse D) a series of impulses

Biology & Microbiology

The presence of known carcinogens in ETS supports the argument that ETS can cause lung cancer in nonsmokers

Indicate whether the statement is true or false

Biology & Microbiology