What’s the sine of 150 degrees?

What’s the sine of zero?

In a 45-45-90 triangle, the side lengths are proportional to

cosine of 45 degrees is:

Convert from degrees to radians.

  Assume each unique shape/color combination is a species. What is the gamma diversity of these three communities?

As an angle changes from 0 degrees to 90 degrees, the tangent of the angle ranges  

If the radius of a circle is 24 cm, what is the length of the arc subtended by an angle of 

What term describes the series of downstream effects on the food web  of a community, resulting from a change in the community structure? 

In your own words, briefly explain what a stable state is.