The thickest layer that contains the mixture of gases called air is

a. Exosphere

b. Mesophere

c. Stratosphere

d. Thermosphere

e. Troposphere

What do you have to do to break a molecule? A. Cut it B. Physically separate the elements C. Break chemical bonds between the elements D. Hit it with a hammer

Your significant other is an amazing chef. When you come home from lecture, the smell of whatever she or he is cooking makes you salivate as soon as you step in the door. Your saliva is being secreted from what type of gland?

Why is a circulatory system important to the needs of all cells throughout an animals body

Which is a main function of lipids?

How many germ layers do cnidarians have and name them

In what ways are all stars the same? in what ways do they differ? be specific.

Which of the following statements is true? Parts of an ecosystem only include biotic factors such as plants and animals. If a common plant in an ecosystem becomes diseased, the ecosystem may become unbalanced.

Each chromatid within a chromosome contains the same set of genes. true each chromosome contains both dna and protein

After identifying a question, what is the next step of the scientific method?

4.1f your body movement and appearance Says one thing and your Words Say Something else, you're