Molecular clocks are models that use mutation rates in dna to measure evolutionary time. true or false

How is local weather impacted by jet streams shifts?

What do the eras of the geologic time scale represent?

Is calcium a element or compound

In a fixed volume when temperature increases, pressure does what? also in a fixed volume when temperature decreases, pressure does what?

Bottom trawling is a destructive fishing practice that destroys ocean habits. True or false

The resistance of many bacterial species to antibiotics is an example of: stabilizing selection directional selection disruptive selection extreme selection

An amino acid sequence in whales for a protein shared by all organisms will be the least similar to the sequence in

Which of the following statements about water are true? Check all that apply. Water covers 75% of the Earth Once water is used it can never be reused. Only 3% of Earth's water is fresh water. Water comprises the majority of all plants and animals

How organisms could be harmed by high levels of salt from roadways, and expressing your opinion about whether it should continue and why.

If a wildfire occurs in a grassland, what would be a positive effect to the ecosystem