Answer:
a. neurotransmitters presynaptic >>>> 2. chemicals that are released into the synapse
b. neuron postsynaptic >>>> 3. integrating information
c. neuron dendrites postsynaptic >>>> 1. receiving information
d. neuron cell body >>>> 4. sending information
Explanation:
Neurons transmit nervous impulses. These cells are composed in general by a cellular body, dendrites that are cytoplasmic extensions that receive stimuli (information) from other cells, and an axon that is a long structure capable of conducting the electrochemical signals. Every neuron forms <em>connections with other neurons</em>. These connections are known as <em>synapsis</em>. As it happens in every synapsis between cells when a presynaptic neuron sends information, a neurotransmitter is released. This molecule is a chemical substance that travels through the synaptic cleft to the junctional area and binds to its receptors in the postsynaptic membrane. This binding produces a depolarization of the cell called an excitatory postsynaptic potential. An action potential is initiated and spreads to the rest of the membrane depolarizing it.
Answer:
The correct answer is option A. <em>birds can fly.</em>
Explanation:
One characteristic that distinguish birds from all other animals is that birds have feathers. Birds are the only animals that have feathers, actually it is said that if an animal have feathers it must be a bird. Feathers serve many purposes for birds: they allow birds to <em>fly</em>, serve as insulators for their eggs and their young's, and also give them protectrom from water and cold temperatures.
Answer:
from the stomach to the small intestine
