A drought occurs in an environment with a large plant population. Which element of natural selection is most likely to enable part of the population to survive and reproduce?
Athe potential for the plant population to produce more offspring than can survive
Ba change in climate conditions
Ccompetition with other plant and animal populations for finite water resources
Dsome individual plants inherited traits that enable them to survive a drought

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.

it's a.true. i'm kind of smart.

potentially fatal issues such as heart attacks and strokes

explanation: