Hypothesize on a possible way that the mass extinction at the end of the Mesozoic Era contributed to mammals becoming the dominant life-forms during the Cenozoic Era.

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.