The postsynaptic potential is the membrane potential, which takes place in the neuron present post synapsis (after the chemical synapse). The presynaptic neuron releases neurotransmitter, which causes the firing in the postsynaptic neurons.
The firing of the post synaptic neuron depends on the excitation and inhibition inputs received from the presynaptic neuron. The firing is the resultant of the summation of excitatory and inhibitory potential. In case, the excitatory potential is greater than inhibitory potential, the post synaptic neuron would be excited. in case, inhibitory potential is greater than excitatory potential, then the post synaptic neuron would be inhibited.
Hence, the correct answer is option d.
1 AU is 149597871 kilometers.
We solve
This gives us .3897114284... AU away from the sun.
Answer:
The correct answer will be option-pollen.
Explanation:
The pollen are the male gametophyte which is produced in the seed plants.
The pollen produce male gametes after entering the female gametophyte. The male gametes fuse with the egg cell and form the embryo inside ovary which matures and forms seeds. The vascular seed plants lack these pollen but instead produces male gametes in gametangia which are replaced by the pollen in the seed plants.
Thus, option-pollen is the correct answer.
Answer:
D) mimicry
Explanation:
If we have two different species of insects that live in separate geographic areas but they display the same characteristic black and red stripes it can mean a lot, as there are numerous factors that can contribute to it. For starters, the two species might have a common ancestor that was exhibiting those same or similar black and red stripes, and if they did their job properly, there's every chance that both species would have kept them. It can be simply an aposematic coloration that developed in the same manner through convergent evolution as a protection or warning from the predators. We can not say that it is an example of mimicry, as the two species live in different geographic areas, thus they are not in contact with each other, thus they can not replicate the colors and behavior from the other species.
The Answer should be B. Skeletal! If you need I can provide a video for any other questions
