Which of the following correctly matches salivary gland cells with their secretions?

acinar cells—digestive enzymes, bile and mucus
acini cells—water, electrolytes, mucus and enzymes
acini cells—digestive enzymes, bile and mucus
acinar cells—water, electrolytes, mucus and enzymes

Which of the following elements does soil need in the largest quantities to sustain plant life? a. copper b. iron c. nitrogen d. zinc

Which list is in order from simplest to most complex? a bacteria - virus - plant - protist b protist - bacteria - virus - plant c virus - bacteria - plant - protist d virus - bacteria - protist - plant

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.