Which properties change the composition of a substance? A. Physical properties B. Neither chemical nor Physical properties C. Chemical properties D. Chemical and Physical properties

A manufacturer claims its cleanser works twice as fast as any other. Could test be preformed to support the claim?

Two scientist do not agree on which type of grocery bag is better for the environment what is the most likely outcome of their disagreement?

Explain what happens inside your body as you give an oral report in front of your class

Why are there no gram-positive archaea species, but there are gram-positive bacteria species? A. Archaea lack peptidoglycan B. Archaea do not have a cell wall C. Archaea lack chitin D. Archaea do not have a cell membrane

All matter is made up of atoms that cannot be divided or destroyed. True or False

Animal cells are bathed in an isotonic fluid, and plant and bacteria cells have a cell wall. What does this protect the cell membrane from?

Explain why latin is the basic for many scientific names

What is incomplete penetrance and what causes it? incomplete penetrance means the heterozygote has an intermediate phenotype between the two homozygous phenotypes because of interactions with environmental factors.

Support, protection of soft tissue, mineral storage, and blood formation are functions of what system?

How is a person with a body mass index of 31.2 classified? underweight normal weight overweight obese?