Which cells form the stomata? a. sieve cells b. guard cells c. phloem cells d. mesophyll cells

Ageologist determines that a sample of a mineral cant be scratched by a steel nail but can be scratched by a masonry drill bit based on this information the sample mineral has to be softer than

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation

Johannesburg kepler, an apprentice of brahe, believed in the heliocentric universe but rejected past astronomers belief in