How do scientists know if two organisms are members of the same species?

How common are magnetic reversals?

Compare latic-acid fermentation and alcohol fermentation.

How might an ecologist test whether a species is occupying its realized or its fundamental niche?

During the Carboniferous period, forests consisting mainly of produced vast quantities of organic matter, which was buried and later became coal. A) giant woody mosses C) ferns and other seedless plants B) gymnosperms D) angiosperms

Explain why chemists refer to the joining of monosaccharides molecules to form disaccharides as a "dehydration synthesis" reaction. (aka: condensation reaction).

From what is a nebula made? stars planets asteroids dust and gas

Which phrase if placed in box X would correctly complete the flowchart shown below?

Question 14 of 20 A mutation in human ATPase 6, which corresponds to E. coli subunit a, from leucine to arginine at position 156 may allow the movement of protons across the membrane, but not the rotation of the ring of c subunits.

Once DNA is cloned, we have the problem of finding the piece of DNA that holds our gene of interest. Explain how nucleic acid hybridization will accomplish this task.

Bile salts are synthesized from cholesterol and are used for the emulsification of dietary lipids. What is the primary fate of bile salts during digestion?