Answer:
- Mitochondria
- Ribosome
[Some other organelles include the nucleus, endoplasmic reticulum, chloroplasts, Golgi body, lysosome and centriole]
Building models doesn't actually help scientists observe phenomena. Scientists build models to describe how nature and systems operate then make observations to see if their models match what they observe. Models which don't match what they observe are either alterated or scrapped. Good models are kept and used by the scientific community.
Answer:
Nonrenewable resources are used to help provide humans with the energy they need to power their homes, cars, and Fourth of July barbeques. They're an important part of the worldwide economy because they're some of the most common ways we get the energy we need to power our lives.
Explanation:
The fossil record is used to divide Earth's history into geologic time periods. The figure below shows the four major subdivisions of geologic time—eons, eras, periods, and epochs. Eons are the longest subdivision and are based on the abundance of certain fossils. Eons are divided into smaller time periods called eras
Darwinism's survival of the fittest and natural selection
