Answers: 2
Biology, 22.06.2019 11:30, brebre63
What is the main difference between the central nervous system (cns) and the peripheral nervous system (pns)? .the cns involves the brain and spinal cord, and the pns involves the body nerves. the cns involves the body nerves, and the pns involves the brain and spinal cord. the cns involves sensory neurons, and the pns involves motor neurons. the cns involves motor neurons, and the pns involves sensory neurons.
Answers: 1
Biology, 22.06.2019 19:50, dayanawhite64
Which statements explains what the fossil records indicates? check all that apply. a) earth is 4.5 billion years old b) many organisms have become extinct c) mammals have always existed on earth d) mass extinctions have occurred several times on earth e) the amount of water on earth has decreased over time?
Answers: 2
Biology, 22.06.2019 22:00, ryantrajean7
You have trained year for a marathon. in your first attempt to run a marathon, you decide that you want to complete this 26-mile race in 4-5 hours. a. what is the length of a marathon in kilometers (1mile= 1.6 kilometers). b. what would your average speed have to be to complete the race 4.5 hours? give your answer in kilometers per hour.
Answers: 1
Biology, 23.06.2019 05:30, jebjeb6124
The process by which volcanoes vent water vapor, carbon dioxide, nitrogen, and other substances is called question 17 options: oxidation glaciation differentiation outgassing
Answers: 1
Plants take up nitrogen and absorb it into their organic matter via their roots in a process ....
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