When barium hydroxide, Ba (OH) 2, mixes with water, the solution turns cold.

What is an indicator of a chemical change in the scenario?

formation of a gas

formation of a precipitate

change in energy

change in color

A doctor notices that a patient is having difficulty absorbing nutrients. Which structure is most likely involved in the patients problem? Intestines Pharynx Esophagus Stomach

What process was given as an example of the violation of Mendel's second law? a. disjunction b. nondisjunction c. linkage d. deletiorn e. insertion

Identify orgasm below that has cells that have a cell wall a octopus b shark c rat d pear plant

Lisa is in the eighth grade. Normally she is active in clubs, plays sports, and gets good grades, but lately she hasn't been feeling well. Her throat is sore and her lymph nodes feel swollen.

Explain how the development of the microscope changed how scientists studied living organisms.

List 4 piece's of evidence that support the theory plate tectonics

Which is the best example of a force counteracting Fp? using a dolly to push a box to another location two children pulling apart a wishbone a group of dogs pulling a dogsled across ice two people pushing a broken-down car up the road

What layer of atmosphere reflects radio waves

Which functional group allows the sugar glucose to dissolve in blood? a. Carboxyl b. Hydroxyl c. Phosphate

A protein is in its native conformation when a. it is thermodynamically least stable b. it has the highest gibbs free energy c. it is in any of its functional, folded states d. it is unfolded e. none of the above