Which of the following could be a function of a phagocyte? Choose 1
A. Acting as a physical barrier against pathogens
B. Activating B cells
C. Engulfing a foreign pathogen
D. Making antibodies specific to a pathogen

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.