Assuming a synapse is excitatory, which of the following would tend to strengthen a synapse? a. a drug that enhances reuptake of the transmitter b. an antagonist to the receptor c. a drug that blocks calcium entry into the presynaptic terminal d. a drug that inhibits an enzyme in the synaptic cleft that degrades the neurotransmitter

Anne, an intern in a microbiology lab, was observing the characteristics of various specimens of protists. match each specimen to the category of protist to which it belongs.

Coral have a symbiotic relationship with what in order to eat?

Subduction zones form when an oceanic plate collides with another oceanic plate or continental plate. the continental crust is lighter and less dense than oceanic crust. continental crust's density is approximately 2.7 grams per cubic centimeter. oceanic crust is thinner and the average density is about 3.3 cubic centimeters. when the two crustal plates converge the oceanic plate always bends and subducts beneath a continental plate. once the oceanic crust subjects, the rocks are subjected to changes in heat and pressure. because of this, we would expect to find rocks in the area of a subduction. a) clastic b) igneous c) metamorphic d) sedimentary