Which structures are part of the body's first line of defense against pathogens?

A.

white blood cells

B.

red blood cells

C.

lymph nodes

D.

mucous membranes

Place the following steps in order for motor control. 1. Upper motor neurons stimulate lower motor neurons. 2. Sensory information is relayed back to the cerebellum so movement can be modified if needed. 3.

A child has a splinter under the right middle fingernail. what icd-10-cm code is reported?

What is the main function of cuticle in plants? A. Prevent water loss B. Absorbs sunlight C. Protects the plant from predators

Protein synthesis consists of two processes: transcription and translation. True False

In which part of the river would you expect to find high oxygen levels, low nutrient levels and low biodiversity levels? A. 3rd to 5th order streams B. 1st and 2nd order streams C. High order streams and rivers D. near the headwaters or source

How did Francesco Redi disprove the idea of spontaneous generation? He showed that flies were not produced by meat. He showed that microorganisms are present in air. He showed that microorganisms cause disease. He showed that flies spread disease.

Of the millions of sperm who start the long journey to the egg, how many sperm are actually allowed to enter the egg?

A mineral leaves a gray trail when scraped against an unglazed porcelain plate. Which property of a mineral is being measured? A. luster B. streak C. color D. hardness

Which two systems in the human body are devoted exclusively to the regulation of organ function?

A 40-year-old man reports to his health care provider complaining of "heartburn" that occurs after eating and also wakens him at night.