Biology, 11.10.2019 13:30, asalterasalter9211
Instead of leaves, seedless nonvascular plants have structures called rhizoids. true or false
Answers: 1
Biology, 21.06.2019 21:30, irishdreamer0689
List the advantages and disadavantages of the switch from persistent chlorinated hydrocarbon pesticides (such as ddt) to nonpersistent organophosphate pesicides. have the benefits of the switch outweighed the disadvantages? explain.
Answers: 3
Biology, 22.06.2019 13:20, crazymadhatter0
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
Instead of leaves, seedless nonvascular plants have structures called rhizoids. true or false...
Mathematics, 18.12.2019 06:31
Mathematics, 18.12.2019 06:31
Mathematics, 18.12.2019 06:31
Biology, 18.12.2019 06:31
Physics, 18.12.2019 06:31