Which cells form the stomata?

A. sieve cells

B. guard cells

C. phloem cells

D. mesophyll cells

Which muscle is the primary retractor from the protracted position of scapula?

An organism's relative ability to survive and produce fertile offspring

What is the type of chemical reaction used to rebuild ADP into ATP? a) hydrolysis b) dehydration synthesis c) rehydration synthesis

What can be produced by thunderstorms

Which of the following best describes half-life? a. Half the time it takes for all of the nuclei in a sample of a radioactive isotope to decay. b. The time it takes for the nucleus of one atom of a radioactive isotope to split in half. c.

In cellular respiration, the average amount of energy required to break the bonds of the reactants is 2,878 kcal/mol. However, a total of 3,564 kcal of energy is released during the formation of the bonds in the products. What can be concluded

which step in rock cycle occurs immediately befor sediments are laid down a. layers form b. heat and pressher are applided. c lava cools d. erosion breaks down rock

The blank theory of matter states that all particles of matter are in constant motion

Which of the following factors might a person consider in choosing job

A eukaryotic decomposer with a cell wall made of chitin is associated with which of the following Eubacteria Protista Archaebactria Fungi