The system senses changes in the internal and external environment so that the body can adapt to the changes.
a.
nervous
b.
reproductive
c.
endocrine
d.
circulatory

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.

You see a white marker with an orange circle and black lettering. what does this marker tell you

How water is moving through the ecosystem ?