The hypothalamus releases TRH which stimulates the anterior pituitary to release TSH. Which type of stimuli is this?

a. humoral stimuli
b. neural stimuli
c. hormonal stimuli
d. negative stimuli


c. hormonal stimuli

Biology & Microbiology

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Probably the most abundant carbohydrate on Earth, which unbranched chain of b-glucose subunits is the primary

structural fiber in plant cell walls?

a. chitin b. amylopectin c. cellulose d. glycogen e. amylose

Biology & Microbiology

Which of the following covers and protects plant surfaces?

a. ground tissue b. vascular tissue c. dermal tissue d. meristem

Biology & Microbiology

Which pair of traits are least likely to be genetically correlated?

A. A morphological trait that works best with a specific behavioral trait B. Two traits whose appearance varies based on the environmental conditions during development C. Two traits that are in linkage disequilibrium with each other D. Two traits that are affected pleiotropically by a single locus E. Two morphological traits that must "fit" or "work" together

Biology & Microbiology

Energy present in a system that is not usable to do work relates to the system's:

A) temperature. B) work. C) entropy. D) thermodynamics. E) equilibrium.

Biology & Microbiology