PLEASE HURRY I WILL VOTE BRAINLIEST! ACTUALLY ANSWER PLEASE!! What aspect of DNA’s structure most likely made Meselson and Stahl, as well as other scientists, suspect that DNA replication is semiconservative?
A. the shape of its nucleotides
B. the paired, antiparallel DNA strands
C. the bonding between phosphate groups
D. the limited number of base pairs

Which of these organisms have the greatest amount of cell specialized

Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?

Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .