The answer is <span>4. usually short and branched
</span><span>A neuron consists of a cell body, dendrites, and axon. Usually there is only one axon surrounded by a myelin sheath andy many dendrites. Dendrites are short and branched (dendron is Greek word for tree). </span>The cell body connects dendrites and the axon and that way it takes part in communication between two neurons. <span>Axon carries impulse from the cell body, while dendrites carry impulses to the cell body.</span>
Answer:
a
Explanation:
Cells are the functional units of life, this means that all living organisms are made up of cells. In multicellular organisms, cells are organized into complex structures such as tissues, organs and systems. A tissue is made up of similar cells which have the similar function. An organ is made up of several tissues while a system is made up of related organs. Example of a tissue is blood which is made up of similar cells such as red blood cells and white blood cells.
Oxygen is required for aerobic respiration. This reaction produces ATP (universal currency for energy) which our bodies use to survive. Without oxygen much less ATP is produced, as aerobic respiration cannot occur in the lack of oxygen. ATP can be formed by anaerobic respiration, in the lack of oxygen, but this produces far far fewer molecules of ATP. This also produces lactic acid causing us to become fatigued and tired. Thus oxygen is crucial to produce the maximum amount of ATP possible.
Glucose is the main molecule which is respired by our bodies to produce ATP/ energy, which our bodies use to survive. Oxygen and glucose react in the mitochondria to make ATP (release energy.) It therefore, is called a respiratory substrate.
Note: I'm avoided talking about the exact phases of respiration as it is usually not covered till college/ A level standards. If you would like to know exactly which reaction requires oxygen and how it's used (i.e. the stages of respiration) don't hesitate to ask.
Answer:
Polymer
Explanation:
Monomers can be linked together to form a polymer
Answer:
c got it right on my quiz
Explanation:
