The PNS is divided into several subsystems. What two subsystems form the first major division of the PNS?

sensory and motor

somatic and autonomic

parasympathetic and sympathetic

CNS and brain

A species of marine snails have either solid or striped shells. Scientists found that 37 percent of the snail population was striped, and 63 percent was solid.

Which of the following is not an appropriate unit for temperature? * Kelvin Celsius O Joules O Fahrenheit

Discuss why teenagers' understanding of death is not yet fully mature.

The human body contains about 100 billion of what?

How do these infection-fighting cells manage to move around the body and get to the sites of the infection?

1. Some worms eat at night (meaning they are nocturnal) and some worms eat during the day (meaning they are diurnal).

This soil is made up equal parts of clay, sand, and silt. It is called

Which characteristics of capillaries cause restriction of blood flow

One cell has two copies of chromosomes while the other has none. What could have caused this

Suppose you want to set up an experiment to test the hypothesis that electromagnetic fields cause CCD, and you have 6 hives to work with. Which of these is the best experimental setup? A. 6 hives exposed to high levels of EMF B.