What do you call several overlapping and interconnected food chains?
trophic levels
a food web
ecology
none of the above

How have the competing explanations' experiments on atoms affected the development of the atomic model?

What are two different ways you could find the value of a? explain these methods.

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?