What is an advantage conferred to fish by possession of a hinged jaw?
a. additional protection for the brain
b. ability to communicate with other fish
c. increased mating opportunities
d. ability to grasp and tear food
d. ability to grasp and tear food
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Alcoholic fermentation differs from lactic acid fermentation because
a. only one of these processes is aerobic. b. the products are different. c. the reactants are different. d. the reactants and products are different
Increased use of MRI technology has resulted in a surprising medical dilemma. Scans used for early detection of tumors often reveal benign internal growths that would otherwise have gone undetected, called incidentalomas. This creates the problem of determining whether the growths are harmful without performing needless surgeries. Assume that you have found a pituitary incidentaloma in one of your patients. What blood tests could you perform to determine whether it is causing dysfunction? (Check all that apply.)
_____ adrenococrticotropic hormone (ACTH) _____ luteinizing hormone (LH) _____ antidiuretic hormone (ADH) _____ melanocyte-stimulating hormone (MSH) _____ calcitonin _____ melatonin _____ follicle stimulating hormone (FSH) _____ oxytocin _____ glucagon _____ prolactin (PRL) _____ growth hormone (GH) _____ thyroid-stimulating hormone (TSH) _____ insulin _____ thyroxine
For humans and most vertebrates the body is supported primarily by
a. an exoskeleton. b. only nonskeletal structures. c. a hydrostatic skeleton. d. an endoskeleton. e. joined exo- and endoskeletons.
The two main types of eukaryotic microtubules are the ________ and ________ microtubules
Fill in the blank with correct word.