Is the speed on this graph increasing or constant?

The speed is constant.

Explanation:

The equation for a straight-line graph is  

y = mx + b

where m and b are constants.

m is the slope of the line and b is the y-intercept.

If we change the variables, the equation becomes

d = mt + b

Since m is constant, so is the speed.

they all get energy from eating other animals, dead animals to be more precise.

hienas tends to steal pray from other animals. crows and vultures tend to eat dead animals and leftovers.

hope it ,

bioteacher101