How is relative-age dating used to determine the ages of fossils? Group of answer choices

1. by identifying the way the fossils were formed

2. by using radioactive isotopes

3. by the formation of igneous rocks

4. by estimating the number of fossils in a particular region

5. by observing the formation of sedimentary rocks

Four different thermometers were used to measure the temperature of a sample of pure boiling water. the measurements are recorded in the table below. thermometer temperature reading 1 temperature reading 2 temperature reading 3 w 100.1°c 99.9°c 96.9°c x 100.4°c 102.3°c 101.4°c y 90.0°c 95.2°c 98.6°c z 90.8°c 90.6°c 90.7°c the actual boiling point of pure water is 100.0°c. what can be concluded from the data about the reliability and validity of the thermometers?

Types of scientific inquiry that biologist engage in that cannot be completely controlled

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes