The maximum blood pressure is during: A) right atrium contraction: the dub sound occurs
B)left atrium contraction: the lub sound occurs
C) left ventricular contraction: the lub sound occurs
D) right ventricular contraction: the dub sound occurs

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)

Cold case files recently began re-investigating an old murder case. the murder took place in the park; a young man, james, was hit over the head with a brick and killed. police suspected the jealous former boyfriend of james' wife, karen. whoever killed james may have washed their hands in a near-by bird bath as detectives found blood in the bird bath. since the murder took place before dna fingerprinting was available, the suspected killer, ronnie, went free. detectives are now reviewing the blood evidence using dna fingerprinting. based on the dna fingerprints of all possible suspects, who is james' killer?

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis