describe how increasing salinity affects the amount of fluid ejected each time a contractile vacuole contracts. calculate the water potential (ψ) of an animal cell without contractile vacuoles if water enters the cell and creates a solute potential (ψs) of −2. assume that the pressure potential (ψp) in the cell is 0.

Wats iqpow pls write 20 words for an answer

Luminous objects such as flashlights emit light that we can see. how do we see an object that isn’t luminous? a. the object emits light that reaches our eyes. b. light reflects off the object and reaches our eyes. c. light passes through the object uninterrupted. d. light is fully absorbed by the object. e. we can’t see an object that isn’t luminous.

Dan runs a busy desktop-publishing company. his company want to increase its exposure, so it runs a new a new promotion each week. the tool dan most likely choses to publicize this is a promotion is a