Answer:
The levels of Organisation in multicellular Organisms are Cells,tissues,organs and organs systems.Organisms,
Explanation:
Cells through out the body develop and perform different functions.Different types of cells constitute to form tissues,and different tissues constitute to form an organ and different organs constitute form an organ system and different systems perform specific functions.The organ systems such as the digestive,circulatory,excretory,nervous,Respiratory,lymphatic system and reproductive system These systems are complex by the action of enzymes these systems are carried out.Without the enzymatic action the functions of a system cannot carry out.
Answer: Calcium: not enough calcium can lead to rickets, osteopenia and osteoporosis. Iodine: not enough iodine can cause goitre and other conditions like intellectual disability. Iron: children are at higher risk of iron deficiency than adults, mainly because children need more iron when they go through growth spurts
Explanation:
The answer is the Ventral body cavity
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This will result to an excitatory postsynaptic potential ((EPSP)
Neurotransmitters are those chemical messages that transmits signals from nerve cells to their target cells.
Neurotransmitters are packed inside vesicles at the presynaptic nerve terminal.
The arrival of an action potential at this terminal leads to opening of Voltage gated channels.
This leads to a change in membrane voltage of the postsynaptic cell following the influx of positively charged ions (sodium ion) into the cell which is called the excitatory postsynaptic potential.
Therefore, excitatory postsynaptic potential ((EPSP) occurs when a neurotransmitter opens a chemically gated ion channel that allowing sodium to enter the postsynaptic cell.
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