Scorpions have a prosoma, pedipalps that are modified into claws, and chelicerae. Which taxonomic group are they a member of?
A. Chelicerata
B. Hexapoda
C. Crustacea
D. Myriapoda
A. Chelicerata
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What does the normal protein that is encoded
by the “cystic fibrosis” gene do?
a. transports chloride ions across membranes b. delivers chloride ions to the endoplasmic reticulum c. binds chloride ions to DNA prior to gene expression d. binds chloride ions to bacteria so they are more easily recognized by white blood cells e. the normal protein does more than one of these things
In 1951, Anand and Brobeck reported that bilateral electrolytic lesions to the lateral hypothalamus produce________.
Fill in the blank(s) with the appropriate word(s).
The first material to enter the Krebs cycle is
A. oxygen. B. glucose. C. acetyl-CoA. D. citric acid.
Choose the TRUE statement(s) about neural control of breathing. (Select all that apply.)
a. The breathing rhythm is generated by neurons in the hypothalamus. b. Breathing rate is modified by peripheral receptors that sense levels of oxygen in the carotid artery. c. An elevation in blood PCO2 will increase breathing rate. d. An elevation in blood pH will increase breathing rate.