Which of the following is an example of a chemical change?

Breaking glass

Boiling water

Baking a cake

Holding two magnets together

Why is high blood pressure damaging to the heart? a. with high blood pressure, the blood is more viscous and harder to pump. b. the heart rate slows down to dangerously low levels if blood pressure is too high. c.

What is the danger of digging a hole for an outhouse at a beach cottage?

When a human moves to high altitudes (like from Boston to Denver, Colorado), they adapt to the lack of oxygen by increasing their red blood count. * True False

What is dependent viable

Jackson lives near the equator. Nighttime for Jackson is _ 24 hours long during the winter 24 hours long during the summer 12 hours long all year 12 hours long for half of the year

A substance is on its fifth half-life. Which approximates the percentages of radioactive and stable isotopes, respectively? 96.9%; 3.1% 3.1%; 96.9% 12.5%; 87.5% 87.5%; 12.5%

Cephalopods are known for having highly developed nervous systems which includes a highly developed eye and the ability to change their coloration. Provide two ways that this is beneficial for organisms in this class.

What is cellular respiration and fermentation?

Why do fertilisers need to be soluble

Viruses, unlike bacteria, are not living organisms. Based on the information in the table, which of the following provides evidence to support this statement? A. Bacteria are made up of cells, whereas viruses are not made up of cells. B.