Most of the work of mixing humus within the soil is done by
A fungi
B. ants
C. earthwo...
Answers: 3
Biology, 22.06.2019 12:40
Select the correct answer from each drop-down menu. the lac operon in e.coli regulates genes that code for enzymes required for breakdown of lactose. the lac operon is operon that is activated in the presence of .
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
Biology, 22.06.2019 18:30
What part of the body contains bile, an enzyme that break down lipids?
Answers: 1
Biology, 22.06.2019 20:10
Describe surface tension in a group of bonded water molecules
Answers: 1
Health, 06.07.2019 03:30
History, 06.07.2019 03:30
History, 06.07.2019 03:30
Mathematics, 06.07.2019 03:30
Mathematics, 06.07.2019 03:30
Social Studies, 06.07.2019 03:30
Mathematics, 06.07.2019 03:30