Which of the following statements is true? All the populations in an ecosystem form the community.
A habitat represents all the biotic factors in an ecosystem.
The amount of nutrients in soil is an example of a biotic factor.
Only one population can live in a habitat at a time

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

If a flying disk is 139 meters in the air and travels at an average of 13 m/s how long is it in the air

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth