The two major divisions of the nervous system are the ________
A) sympathetic and parasympathetic
B) central nervous system (CNS) and peripheral nervous system (PNS)
C) sensory and motor
D) voluntary and involuntary
B
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Answer the following questions true (T) or false (F)
1. Lazzaro Spallanzani was the first scientist to provide evidence disproving the spontaneous generation of microorganisms. 2. The smallest chemical units of matter are elements. 3. The side groups of amino acids can interact with each other and with other molecules.
N-terminal sequences of four different bacterial proteins are listed below. Which of these proteins would have the shortest half-life?
A. Ala-Val-Ile---- B. Ser-Glu-Gly---- C. Lys-Gln-Pro---- D. Thr-Gly-Ala----
When a plant becomes infected by pathogenic bacteria or fungi, it may respond by way of a fight or
flight response – a defense that cordons off an infection site surrounding it with dead cells.
Indicate whether the statement is true or false.Which factor promotes oxygen release from hemoglobin at the tissue?
a. low blood pressure b. low oxygen gradient c. low temperature d. low carbon dioxide concentration e. low plasma pH