Which of the following is a chemical reaction?

1. Freezing liquid Mercury

2. Filling a balloon with air

3. Cutting a piece of paper into two pieces

4. Dropping a sliced orange into a vat of Sodium Dydroxide

Which coral species is most likely to die out when the surface ocean temperature rises

Are bones part of your muscular system.

How is breathing related to cell respiration? (Hint: Think about both the reactants and the products of cellular respiration)

In this lab, you will simulate birds with three different beaks. After watching the birds feed, you will remove fruit to simulate a change in the environment.

The nurse is preparing to assess the pulse on a newborn who has just arrived to the nursery after being cleaned in the labor and birth suite and swaddled in a blanket. which action should the nurse prioritize?

What are the different parts of the cell in a plant cell that do not exist in an animal cell?

A unicellular protist is part of which domain? Archaea Bacteria Eukarya There is not enough information to determine.

1 pts The properties of the elements exhibit trends or periodicity. These trends can be predicted using the periodic table.

When both forward and reverse changes are physical changes, the resulting equation represents what?

Dr. Jones a botanist observes the flowers of the same species express a slightly different shade of red coloring based on where the plants are located within her greenhouse she hypothesizes that the more sunlight the flowers receive the darker red