Biology, 15.11.2019 17:31 blacksabbath6922
Wo sea urchin proteins were named cyclin a and b because, during the embryonic cell cycle, they were periodically
a. activated and inactivated by phosphorylation and dephosphorylation.
b. synthesized and degraded.
c. ubiquitylated and nonubiquitylated.
d. bound and released by another protein.
Answers: 3
Biology, 22.06.2019 02:30
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?
Answers: 1
Biology, 22.06.2019 11:00
What are antigens and antibodies? how are they involved in the body’s response to incompatible blood?
Answers: 1
Biology, 22.06.2019 13:00
Which of the following cell structures is significantly different between gram- positive and gram-negative bacteria?
Answers: 3
Wo sea urchin proteins were named cyclin a and b because, during the embryonic cell cycle, they were...
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