Ateacher set up a demonstration with 5 fermentation flasks filled with the solutions listed below. she added 10 ml of yeast solution to each flask, and students observed the flasks every 10 minutes for the rest of the class period.
what solution did the teacher most likely add to flask 1 to create a valid experiment?

parasites can detrimentally affect their host, but also must not allow their host to die before they can complete their life cycle. some parasites have complex life cycles with many different hosts, and have had to find ways of persisting in many different environments during the change from one host to another. ectoparasites live outside the body of the host, and can more easily  disperse, but are  more exposed to predators, parasites, parasitoids. endoparasites live inside the body of the host, and are therefore protected from the outside environment. but they can be  attacked by the host's immune system. they have therefore developed  mechanisms for dispersal such as  complex life cycles.

b. lithosphere, asthenosphere, mesosphere   is the answer most likely

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )