Answer:
spatial summation
Explanation:
There are two types of neuron summation:
- temporal-multiple repeated signals (target neuron receives a single form one neuron that is repeated)
- spatial-multiple simultaneous signals from multiple synapses (target neuron receives few different inputs).
Since the signals might be excitatory (produce depolarization of the postsynaptic cell) or inhibitory (produce hyperpolarization) of the postsynaptic cell, their total sum might or might not trigger an action potential on neuron.
Answer:
Called Organelles
Explanation:
A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. ... Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.
Because the granules have a strong negative charge and absorb the Methylene blue. The cytoplasm is stained a pale blue
Answer:
biological species concept
Explanation:
The biological species concept is the most commonly used and acceptable definition of species, which explains that a group of organisms can be referred to a species if members of the group can interbreed successfully to produce viable offspring that are also fertile. It explains that there tend to be reproduction barriers that would prevent different species of organism from successfully interbreeding. Also, that two organisms have the same appearance, do not necessarily mean they belong to the same species. For example, a horse and a donkey were interbreed to produce an offspring called the mule, but, the mule was found to be infertile. A horse and a donkey are different species, even though they have close appearance.
