| Questions | 5 |
| Topics | Liver, Respiration, Species Groups, Stratosphere, Weight |
The liver produces bile which emulsifies (separates) fat.
The respiratory system manages respiration which is the process by which blood cells absorb oxygen and eliminate carbon dioxide.
A population is a group of organisms of the same species who live in the same area at the same time. A community is a group of populations living and interacting with each other in an area.
The stratosphere is just above the troposphere and is stratified in temperature with warmer layers higher and cooler layers closer to Earth. This increase in temperature is a result of absorption of the Sun's radiation by the ozone layer.
Weight is a force that describes the attraction of gravity on an object. Force is measured in newtons (N) with 1 N being the force required to impart an acceleration of 1 m/s2 to a mass of 1 kg.