Some drugs are plant products that can bind neural receptors in a human body because the body makes a similar chemical. Endorphins are the human equivalent of
A) opiates.
B) cocaine.
C) THC (tetrahydrocannabinol).
D) ethanol.
A) opiates.
You might also like to view...
The algae that live within the coral reefs exhibit __________ relationship with the coral itself
a. a parasitic b. a predator–prey c. a symbiotic d. no
How does x-ray crystallography provide details about molecular structure?
a. Only DNA molecules scatter x-rays; therefore, this helped to prove that DNA was the genetic material in cells. b. X-rays are reflected by some atoms and absorbed by others; thereby giving clues to molecule structure. c. X-rays are scattered by atoms in a specific pattern, from which molecular size, shape, and spacing of repeating elements can be calculated. d. This technique captures photographs of magnified molecules. e. X-rays can be used to isolate DNA molecules from living organisms.
Individuals in this group often have intracellular shells of interlocking plates
a. green algae b. red algae c. euglenoids d. dinoflagellates e. diatoms
Which of the following explains why fungi are such efficient decomposers, allowing them to undergo rapid and extensive growth?
a. Fungi use the mechanisms used by most parasitic organisms for rapid growth. b. Because fungal hyphae is only one cell thick, fungi present an enormous surface area for enzyme secretion and nutrient absorption. c. Fungi do not ingest food. d. Fungi are adapted to a wide variety of environmental influences, such as temperature and pH.