What cells respond when the immune system detects a pathogen in the body?

The sympathetic and parasympathetic fibers serve the same organs. how can their opposing effects be explained?

Phosphorus is added to the soil through: the action of rhizobium weathering of rocks respiration and transpiration run off from precipitation

William Shakespeare uses which literary device does to show character emotion? A. language and action B. symbolism C. theme D. time and place

Which of the following statements is true of connective tissue? Elastin fibers are sometimes called white fibers. Reticular fibers form thick, ropelike structures. When connective tissue is stretched, collagen gives it the ability to snap back.

How is chemical weathering different from physical weathering? a. Physical weathering involves the movement of substances while chemical weathering does not. b.

Which macromolecule provides a person with most of the energy that is needed for daily activities? O carbohydrates lipids nucleic acids proteins

Which animal phylum has a body cavity but is not a true coelomate?

Which pair contains terms that are closely related in living things? A. size and function B. structure and function C. structure and size D. color and size

means any contact between any part of the genitals of one person and the mouth or anus of another person; or the penetration of the genitals or the anus of another person with an object. (8.5.3)

What is meant by the term "chemically gated sodium channel"? Group of answer choices A membrane channel that opens when some chemical binds to it, allowing sodium to cross the cell membrane A membrane channel that opens when sodium binds to it,