Which cellular organelle is thought to have evolved from a prokaryote that was able to use oxygen? a. chloroplast b. ribosome c. golgi apparatus d. mitochondrion

Look at the following answer choices and determine which belongs in the both category. testable, can be disproven explains natural phenomena, has evidence to support it prediction, tentative, one or more scientists working together well established, many different scientists working independently, highly reliable

Which of the following is most important in making the typical seed more resistant to adverse conditions than the typical spore? a) a different type of sporopollenin b) an internal reservoir of liquid water c) integument(s) d) ability to be dispersed e) waxy cuticle

Which image shows labeled organelles that are present only in plant cells?