What do scientists call a non-native species that reproduces quickly and spreads in an environment when these organisms can cause harm to an ecosystem?

a.) a competitive species
b.) a displacing species
c.) a persistent species
d.) an invasive species

What volume of a 0.25 m solution can be made using 0.55 moles of ca(oh)2

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

How much time has elapsed from the very beginning of "the memior of the conquistador bernal diaz del castillo" to the end? a. castillo's whole life b. a quarter of an hour c. a few weeks d. a decade