A researcher is studying the damage that predators cause to the wings of butterflies. what tools are best to use to determine the percentage of butterflies with damaged wings?

Atoms also take up space and math knowing this we can calculate the density of a single atom. Using the information from Scandium in our previous question (#5) calculate the density if the volume of a single atom is 4,410,945.3pm to the third

Why are gills typically external and lungs typically internal? (you may enter up to 150 characters.) your answer?

A new species is introduced to an ecosystem. Over several years, the species biodiversity of the ecosystem decreases. Which statement best explains this observation? Select one: The species did not feed on herbivores in the ecosystem.

What are the 6 most common elements in living things?

I was just wondering, how do forensics people find out about DNA or fingerprints?

How do we detect the energy of a wavelength?

How energy in gasoline is transformed in a lawn mower

Which observation was a sign that a chemical reaction was occurring in this experiment A) formation of a solid B) change in color C) formation of gas bubbles D) production of light

Cells in multi-cellular organisms A) All look the same B) All have the same function C) Are often quite different from each other D) Are the same size in every part of the organism

Why is it necessary to cool a hot supersaturated solution slowly during a recrystallization?