Which would be an adaptation for living in the tundra?

a hibernation to lower metabolism in the winter

b funnel shaped leaves to water runoff

c deep roots to go into the permafrost

d large ears to release heat

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

In one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air