which of the following fossil is best described as forming when minerals replace all of the organisms

What are the similarities between parents and offsprings

Which of the following is not a form of energy

Kidney stones are little crystals that can be extremely painful. True False

What is happening when scientists use their five senses to learn new information? A. Making predictions B. Drawing a conclusion C. Forming a hypothesis D. Making observations

Opium was a common medication before the modern era of medicine. a. True b. False

Why are some sediments smaller than others

Ethanol is produced during what cycle or fermentation

Explain briefly why there is a limitation on how big a cell can be. Include in your explanation the relationship between a cell's size and its surface area and how this affects what the cell can do.

Which effect is most likely caused by nondisjunction during meiosis? A. an extra chromosome B. an increase in nuclei C. increased survival benefits from traits D. only two types of nitrogenous bases

A segment of dna that codes for rna and a protein is a