How many chambers does the frog heart have?
(a) one.
(b) two.
(c) three.
(d) four.
(c) three.
You might also like to view...
All algae ____
a. are unicellular b. are multicellular c. have chlorophyll d. are motile at all stages of their life cycle e. have life cycles with alternating generations
In a neuron at rest, the membrane is most permeable to
A. sodium. B. chloride. C. calcium. D. potassium. E. magnesium.
Which of the following cerebral areas is correctly matched with its function?
a. occipital lobes?control auditory centers b. temporal lobes?control skeletal muscles c. frontal lobes?control visual centers d. parietal lobes?receive sensations of heat, touch, pressure e. substantia nigra?control learning and language
Which of the following are primarily responsible for cytokinesis in plant cells but not in animal cells?
A) kinetochores B) Golgi-derived vesicles C) actin and myosin D) centrioles and centromeres