in and oxidation-reduction reaction, what happens to the chemical that is oxidized? What happens to the chemical that is reduced?
Answer: oxidized: loses electrons, reduced: gains electrons (OILRIG)
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Which of the following hormones stimulates ovulation?
a. gonadotropin-releasing hormone b. luteinizing hormone c. follicle-stimulating hormone d. estrogen e. progesterone
One advantage of participating in a biofilm is ____________.
A. the ability to move as a group. B. the ability to share other members’ toxin-degrading secretions. C. increased competition for food. D. the ability to break down neighbor’s scaffolding for food. E. the formation of a colonial organism.
Neurotransmitters that open Na+ channels and trigger action potentials in receiving cells are called
A) inhibitory. B) excitatory. C) sympathetic. D) parasympathetic.
Approximately 3.5 million years ago the Isthmus of Panama formed. This new landmass severed the connection between the Pacific Ocean and the Caribbean Sea. An ancestral fish population (porkfish) was split in two by this event; the two populations no longer interbreed and are two distinct species. This type of speciation is called
A. parapatric speciation. B. hybridization. C. sexual selection due to ecological variation. D. sympatric speciation. E. allopatric speciation.