What is the lining around the brain called?

How does an inroduction species affect native species and the economy?

Which statement is true of viroids? They are single-stranded RNA particles. They reproduce only outside of the cell. They produce proteins. They affect both plants and animals.

Explain the difference in function between the left ventricle and the right ventricle of the heart. How is each one adapted for its particular function?

10. Living things are made mostly of these four main elements: (1) hydrogen, oxygen, nitrogen, and protein (2) water, protein, carbohydrate, and fat (3) carbon, hydrogen, oxygen, and nitrogen (4) glucose, salt, mineral, and base

ATP is made up of three parts, what are they?

Isn't this correct?! (I chose A). My teacher marked it incorrect. What is a phenotype? A. the physical or detectable traits of an organism B. a type of biological diversity caused by environmental factor that affects the organism C.

Which of the following is a reason why geographic range can decrease? A. environmental change B. reaction to another species C. human interaction D. all of the above

What effect does sympathetic nervous stimulation have on digestion? A. Diarrhea B. Inhibits digestion C. Enhances digestion D. Vomiting

What was a primary reason for the revived popularity of the Ku Klux Klan?

A behavioral adaptation is ... Give at least 2 examples