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Biology, 12.04.2021 18:20 AJSkullcrusher
Please only respond if you know the answer and links will be reported
Answers: 3
Biology, 21.06.2019 20:40
Match the following terms describing electrical events with the correct phases of the cardiac cycle. the ventricular muscle cells depolarize at the start of this phase. during this phase, na+ entry through the funny channels causes the pacemaker potential of sa nodal cells to gradually become less negative until it reaches threshold. the ventricular muscle cells repolarize right before this phase. the cytosolic concentration of calcium in the contractile cells of the ventricle is highest during this phase. a. isovolumetric relaxation b. ventricular ejection c. isovolumetric contraction d. ventricular filling
Answers: 3
Biology, 22.06.2019 12:30
In meiosis ii during anaphase ii which structures separated homologous chromosomes or sister chromatids
Answers: 1
Biology, 22.06.2019 13:00
Which spheres are involved when sedimentary rocks formed from parts of seashells at the bottom of the ocean? a.) biosphere, atmosphere, geosphereb.) geosphere, hydrosphere, biosphere c.) geosphere, exosphere, hydrosphered.) hydrosphere, biosphere, atmosphere
Answers: 1
Biology, 22.06.2019 13:20
Choose the incorrect statement (a) the motor end plate membrane is only capable of generating graded potentials, but it is contiguous with the skeletal muscle sarcolemma, which can generate action potentials. (b) propagation of an action potential through the t-tubules into the sarcoplasmic reticulum triggers the release of ca++ into the cytoplasm of a skeletal muscle fiber. (c) the generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron. (d) a greater amount of ach would be found in the presynaptic vesicles of a motor unit that fired several action potentials after exposure to botulinum toxin, than in a motor unit that fired several action potentials after exposure to the venom of the krait snake (which contains α-bungarotoxin).
Answers: 2
Mathematics, 05.05.2020 11:06
Mathematics, 05.05.2020 11:06
Mathematics, 05.05.2020 11:06
Mathematics, 05.05.2020 11:06
Mathematics, 05.05.2020 11:06
Mathematics, 05.05.2020 11:06
Physics, 05.05.2020 11:06
Mathematics, 05.05.2020 11:06
Mathematics, 05.05.2020 11:06
Computers and Technology, 05.05.2020 11:06
Mathematics, 05.05.2020 11:06