Answer:
The answer is B
The fleas in the container with only distilled water
Explanation:
Just took the test on Apex
The answer should be c if not d
The parts of one nucleotide a nitrogenous bases (labels C and D), a pentose sugar (labels B and E) and phosphate group (labels A and F).
<h3>What is a nucleotide?</h3>
A nucleotide is a building block of nucleic acids (either DNA or RNA) that form the genetic material of an individual.
Phosphate groups form the backbone of the double helix and bind to pentose sugars in adjacent nucleotides.
Nitrogenous bases bind opposite DNA strands by hydrogen bonds, they include Adenine (A), Guanine (G), Cytosine (C) and Thymine (T).
In this case, the labels include:
- Label A: phosphate
- Label B: deoxyribose sugar
- Label C: nitrogenous base
- Label D: nitrogenous base
- Label E: ribose sugar
- Label F: phosphate
In conclusion, the parts of one nucleotide a nitrogenous bases (labels C and D), a pentose sugar (labels B and E) and phosphate group (labels A and F).
Learn more about nucleotides here:
brainly.com/question/1569358
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Answer:
It is because the axons that fail to find a target cell die thats why every axon in an adult mammal has a target cell (muscle cell or other neuron) with which it makes synaptic contact.
Explanation:
Synapse is basically a structure in the nervous system responsible for the passage of the electrical and the chemical signals from one neuron to another neuron or an effector cell.
Usually the axon is the presynaptic part of the synapse and the postsynaptic part is usually present on the body of the neuron or a dendrite or an effector cell like a muscle cell.
If the axon doesn't make a synaptic contact with the target cell , the axon will die because the neurotransmitters and the chemical mediators will not be released and no action will result on the postsynaptic membrane.
