Hey there!
Number 3, "has more people than ever before" is correct. As there are more people, there is a greater need more resources.
Hope this helped, have a good night!
The way that neurons communicate is through synaptic vesicles which release neurotransmitters.
<h3>What are Neurons?</h3>
The neurons are the basic structural and functional unit of the nervous system.
These neurons are able to communicate to each other through the neurotransmitters that are released by synaptic vesicles.
The neurotransmitters are chemical messengers that carry chemical signals from one neuron to another upon the generation of an action potential.
The synaptic vesicles are the organelles that house these neurotransmitters.
Learn more about neurons here:
brainly.com/question/13061744
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The components of the urinary system are the kidneys, ureters, urinary bladder, and urethra.
Let "r" stand for the recessive red hair trait. A person with red hair must have a genotype of "rr" ( one from each parent) in order to have red hair( red hair being the phenotype).
Let "B" stand for brown hair and "b" stand for not brown hair. A person with brown hair can have a genotype of "Bb" or "BB" and have a phenotype of Brown hair. This is becasue brown hair "B" is the dominant trait.
