28. The diagram below is of a longitudinal section of a certain part of a plant a
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(a) Name the part of the plant
(3 mark
(b) Name the
Regions
B
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Parts:
V
W

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

Which part of the neuron below is indicated by the arrow, and what is its function? hormones send chemical signals throughout the body to regulate other body processes. hormones are chemical signals that are sent throughout the body to regulate other body processes. hormones send electrical signals throughout the body to regulate other body processes. hormones are electrical signals that are sent throughout the body to regulate other body processes.

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above