A 54-gram sample of an unknown material has a volume equal to 20 cm3. What is the identity of the substance?

Which is an environmental change that occurs very slowly? a. tsunami b. global warming c. seasonal changes d. oil spill

How do these similarities support the Theory of Evolution?

What is a molecule the human digestive system cannot break down

Which population has grown the least in the last 20 years

What is the definition of Abiotic

Which statement best describes the relationship between activation energy and rate of reaction? O Increasing the activation energy can increase the rate of a reaction. O Reducing the activation energy can increase the rate of a reaction.

Definition: this is a haploid cell with half the reproductive information from the parent.

Does a cell use energy when molecules diffuse in or out of the cell? Why?

Below is a list of possible challenges. Check all errors that you mentioned in your answer. Traits other than beak type might affect natural selection. It could take many generations to observe adaptions to a population.

A farmer dug a well but did not find any water Which reasons most likely explain why the farmer did not find water? Check all that apply.