If you accelerate a car to 30 mph it does not take that much force to stop it compared to 60 mph. The more faster you get the more force you need to stop it. The 60 mph car needs more force to stop.
Answer:
e. all of the above are important for gel electrophoresis
Explanation:
Gel electrophoresis is the process of separating nucleic acids like DNA on the basis of their molecular size.
DNA is negatively charged due to its phosphate component so it is loaded at the negative pole( cathode ) and it migrates to the positive pole ( anode ). The fragments separate on the basis of their size. Smaller fragments run faster while heavier ones run slower. Hence, it is also important to load a molecular weight standard so that we can find out the size of the sample bands by matching them with the standard bands size.
Ethidium bromide is a dye commonly used to visualize DNA bands. It is mixed with electrophoresis gel making solution. It intercalates within DNA and fluoresces when exposed to UV light so that the DNA bands are visible. Hence, all of these things are important for gel electrophoresis to work.
I believe the answer is a. thick layer of blubber
Mammal is an warm-blooded animal that need to keep their body warm. Organ that could insulate the heat would be beneficial to keep the temperature, like layer of fat or thick fur. The example of marine mammals would be dolphin, whale, sea lion and polar bear. Thick fur will not give much benefit for mammals in water, so only polar bear have thick fur. But all of them has thick layer of blubber, so option A will be the most appropriate.
Answer:
im pretty sure its B
Explanation:
just for ur knowledge,,heredity means the passing on of physical or mental characteristics genetically from one generation to another.
i hope it helpss :))