A barrier made up of several layers that stops pathogens from entering the body is

a. the skin. b. white blood cells. c. cilia. d. mucus.

7. The cytoplasm of a cell contains

A fracture in which cranial bones are pressed down inwardly toward the brain is called a depressed fracture

Which type of reaction has the general formula of a B + CD to a D + CB

What is the observable characteristic of a person called?

Check all statements that are true about nuclear radiation. Group of answer choices Alpha radiation is a helium nucleus. Gamma radiation is an electron. Beta radiation can be stopped by thick wood or a sheet of aluminum.

What system includes oceans, lakes, rivers, and groundwater? a. geosphere b. hydrosphere c. atmosphere d. biosphere

Fungal spores a. are only asexually produced. b. cannot be seen in a light microscope. c. are used to identify fungi. d. are produced by molds but not by yeasts. e. are only produced under harmful environmental conditions

Glucose diffuses slowly through artificial phospholipid bilayers. The cells lining the small intestine, however, rapidly move large quantities of glucose from the glucose-rich food into their glucose-poor cytoplasm.

What's the function of rough er

Milo is observing the things around his family's farm. He writes down four different resources and whether he thinks they are renewable or nonrenewable. The table below shows his notes.