Which organism has a central brain?

Ricky is interested in the health and safety or animals and humans. she wants to pursue a career that allows her to monitor diseases in both animals and human populations. which career should ricky pursue?

Which of the following can refer to the form of exercises that uses free weights, weight machines. resistance bands, or the weight of the body to put stress on the muscles ? (a) strength training(b)weight training(c)resistance training(d) all the above

What economic effects might result from the depletion of groundwater supplies from the ogallala aquifer? need to know asap