After running, Ollie’s blood pressure was high. His nervous system sensed this and sent a message to decrease heart rate and blood flow. Which system worked together with the nervous system?

skeletal system
circulatory system
respiratory system
digestive system

What is earths lithospheric plates interact at

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis. b. the primary role of microbes on the planet involves causing disease in animals and humans. c. microbes produce vitamins in the intestines. d. microbes play a role in breaking down waste and decomposing dead organisms.

Before the can be observed by using a transmission electron microscope, cells are sliced into very thin sections. what disadvantage does this procedure present in the study of cellular parts