Lesson 9: Natural Selection and Adaptation Unit Test Science 7 B unit 2 answers

The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?

This part insulates the reaction chamber from the transfer of heat to or from the surrounding environment