Biology, 01.03.2021 20:50, carsyn2016
A chemical reaction occurs. Which of the following would indicate that energy is transformed during the reaction?
A. light is produced
B. an electrical charge is produced
C. heat is produced
D. all of these
Answers: 3
Biology, 22.06.2019 16:00, hollandhogenson
Which enzyme is responsible for “unzipping" the dna by breaking the hydrogen bonds between the nucleotides?
Answers: 1
Biology, 23.06.2019 00:10, LoneWolves
1. beginning with all chambers of the heart in the "relaxed" phase, describe the cardiac cycle in mammals, with systole and diastole of the atria and ventricles. for each time point in the cycle you select, state the following: • whether the atria and ventricles are contracting or relaxing • whether the av valves and semilunar valves are closed or open • whether the pressure in the atria and ventricles is high or low
Answers: 2
Biology, 23.06.2019 02:10, 2020kaylahernan
Nextend of semester testsubmit testreader toolsinto-samosquitoes in tropical regions can carry and transmit the malaria parasite to humans. the mosquitoes used to be killed in these regions by sprayingthem with the insecticide ddt. the mosquitoes that were earlier sensitive to ddt are now not killed by ddt and grow and multiply even in the presenceof ddt. how can you explain this phenomenon? oa. all of the mosquitoes must have undergone a mutation for ddt resistance and produced similar kind of resistant offspring, whichevolved into a ddt resistant population. b.some of the mosquitoes must have undergone a mutation for ddt resistance and produced similar kind of resistant offspring, whichwould have been selected by nature, oc. all of the mosquitoes must have slowly increased their tolerance level to ddt and ultimately would have become completely resistantto ddtresetnextnext
Answers: 2
A chemical reaction occurs. Which of the following would indicate that energy is transformed during...
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