On the periodic table, elements are grouped in columns with other elements that share ___.

A) The same atomic mass

B) The same atomic number

C) Similar chemical properties

D) The same number of neutrons

How does location influence energy source choices?

How does adaptation affect Health of an ecosystem

Decribe the 3 major types of biomes

The suffix - plasm means A Strength or concentration B controlling and stopping C process of D growth

Use the drop-down menus to answer some questions about dermal tissue

A limestone rock is found in an Arizona desert. The limestone is gray and has a fish fossil. What can scientists learn from the limestone?

What is the mathematical formula for: An experiment began with 4 cells and ended with 128 cells. How many generations did the cells go through?

What are two ways that crossing over contributes to genetic variation

What would happen if hydrogen bonds form between any two nitrogenous bases in dna

Use the drop-down menus to complete each statement. The___controls land for oil and gas development. The___ensures that federal wildlife laws are followed. The___protects ecosystems and supervises public access to forests.