This image shows the EKG of a person with a normal heart rate and the EKG of a person with bradycardia. Based on the EKG, how would you define bradycardia?

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.

This rapid change in species that rarely leaves behind fossil evidence is referred to as