How do i present this data?

The really scientific way to do it would be to make a graph with temperature on the x-axis, mean number of brine shrimp on the y-axis (average of the three replicates at each temperature) and a vertical line running through each mean indicating the standard error of the mean. Then you draw a line connecting the means. But since you didn't say what grade you are in or how old you are, I don't know if you can do that.