This is common sense! Blood
D is the answer because the rest ate observations
I dont want to mislead you, but I believe the answer is A because letter B is wrong because plants go through cellular respiration and photosynthesis, whereas animals go through cellular respiration but not photosynthesis, and for C, I've never heard of that so it doesnt seem likely.
The answer is most likely B). 'The harmless bacteria would not have been transformed, and the mice would have lived,' because, then bacterium transform, they use the genetic material present in their environment to do so, and when Avery destroyed the nucleotide bases(Genetic material) with an enzyme he destroyed any chances that the bacteria would have had at transforming into the virulent strain.
The best and most acurate answer for this is definatlly b
due to d dealing with speed
c is loss of vision
and a is something to do with how we see things that go on for a while in art like a hallway falling into a single point like in art<span />