Sharks and dolphins (aquatic mammals) have fairly similar morphology, the result of living in the same environment. However, many of these similarities are superficial. Which is the MOST DERIVED trait that sharks and dolphins share

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?

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird