Using the phase plane program, plot the phase plane for the Lotka-Volterra model:
x' = (a – by)x
у' = (сх – d)у
Here x(t) represents the population of a prey species, say mice, and y(t) is the population of a predator species, for example, owls. If there are no owls, then the population of mice grows exponentially, and if there are no mice, then the owls die off. However, if the initial populations are both positive, then interesting stuff happens.
Plot the phase plane including a number of solutions of this system with a = b = c = d =1. You decide what is are good limits for your axes. Describe the solutions in a few words.
Do you think that this model gives realistic behavior?

The animal classthis class represents a an animal residing at a zoo. it has a weight (in pounds),height (in inches), a name, and a color. the methods in the class include constructors,getters, and a tostring. you will finish the implementation of these methods. referto the code documentation.1.getters: you will need to implement getter methods. these get a value (froma member variable) in the animal class. you will make a getter method toreturn each variable (weight, height, name, color). reference getname if youare having issues.2.tostring: you will need to finish the tostring method. this returns a stringcontaining information about an animal. the output string should be of theformat: ” (name) , a ( color )â’colored animal . ( weight ) pounds , ( height ) inches .\n”the height and weight are formatted to 1 decimal place. recall from lab 1how to format strings neatly using string. see the reference sectionfor more about string.format.

Write lines of verse that rhyme to remember the following information: acid rain is a type of air pollution caused by chemicals in the air.

Determine whether the following careers would require training or college.