Consider this statement: Air is matter. Which facts best support the statement? Balloons can be filled with air.

Air is essential for life to exist.

Air has mass.

Air is not an element.

To float on air is to be happy.

Air can't be seen.

Paracelsus stated, "All substances are poisons; there is none which is not a poison." What does this mean? Name a substance you would think would never be considered a poison.

Which of the following is true about the functions of rough endoplasmic reticulum (rough ER) and smooth endoplasmic reticulum (smooth ER) ?

How do observations relate to hypotheses? Check all that apply. Observations leading to a hypothesis come from prior knowledge or research. Observations leading to a hypothesis come from the same experiment.

The major role meiosis plays in chromosomal inheritance is to

4. What is the purpose of a channel protein?

A unique feature of dna is that it can duplicate itself through a process called

Flower color in a particular plant species is determined by one gene. The alleles of that gene can code for either red flowers or blue flowers. When a red plant and a blue plant are crossed, some of the offspring produce purple flowers.

Which is not an effect of smoking on the cardiovascular system? it contributes to atherosclerosis. it increases the blood's tendency to clot. it increases blood cholesterol. it increases the size of arteries and veins?

Mention the importance of pancreas

What substance is insoluble in water? quartz vinegar sugar salt