1. The amount of energy the producers in an energy pyramid provide the primary consumers is
4,000 joules. From this amount, 40 joules are provided to the tertiary consumers. Based on
this model, how much of the energy was provided to secondary consumers?
A. 40,000 u
B. 4000
C 40
D. 403

How is the carbon cycle related to global warming ?

Which plate boundary causes plates to collide forming mountain ranges, volcanoes, and island arcs? give an example of this type of plate boundary. 2. at which plate boundary do rifts and mid-oceans ridges form? give an example of this type of plate boundary. 3. at which plate boundary do plates slide past each other while moving in opposite directions? give an example of this type of boundary.

What could happen if two base pairs on a strand of dna or switched