Isotonic since in a hypertonic solution the cell would shrivel up and in a hypotonic solution it would lyse (burst).
The pollen grain is actually the male gametophyte generation of seed plants. Inside the anther, pollen mother cells divide by meiosis to form pollen grains whose nuclei contain half the number of chromosomes characteristic of the parent plant.
(hope that helped answer the question)
A double layer of phospholipids
Cell theory was fdiscovered in the 17th century. but the first. cell theory was credited in the 19th century.
Answer:
C. release of neurotransmitters
Explanation:
The action potential is an explosion of electrical activity that is created by a depolarizing current. This means that some event (a stimulus) causes the resting potential to move toward 0 mV. When the depolarization reaches about -55 mV a neuron will fire an action potential.
