The original periodic table arranged elements by

increasing atomic number

increasing number of neutrons

increasing number of electrons

increasing atomic mass

Create a graph of the potential energy for both exothermic and endothermic reactions. Upload your graph and explain the difference between the two reactions using proper chemistry terms.

Explain how the experiments carried out by Van Helmont and Calvin contributed to our understanding of how nutrients cycle in the biosphere.

What situation most likely explains the occasional high frequency of certain inherited disorders among human populations established by a small population?

Is crossing over a form of genetic mutation? Why or why not?

This aquarium exhibits biotic and abiotic factors in an aquatic environment. One of the abiotic factors is A) coral. B) fish. C) plants. D) water.

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.