Which structure evolved in cells approximately one billion years ago that allowed for the forming of more complex, multicellular organisms? A) nucleus B) ribosome C) plasma membrane D) golgi apparatus

Which level of classification contains all the others? 60 kingdom domain genus class

In order to read a play properly, one must stage the play in one's own imagination. a. True b. False

How is the structure of a virus different from the structure of a prokaryotic cell?

All nucleic acids contain a functional group that is also found in the subset of lipids that make up biological membranes. What is this functional group?

Three ways Animals adapted

Many enzymes require metal ions as cofactors due to the inherent properties of the metal ion. Metal ions, when bound to water, will favor the formation of hydroxide ion, which is a strong nucleophile.

What is a vestigial structure? A. A structure that has no use in the organism B. A structure with similar shape but a different use C. A structure that is only in index fossils D. A structure that contains isotopes! apex!

Why is forecasting human population growth more difficult than forecasting population growth in other animals?

You and your physiology instructor are trapped in an overturned ship. To escape, you must swim underwater a long distance. You tell your instructor it would be a good idea to hyperventilate before making the escape attempt.

Thermal vents are found at the bottom of the ocean in the benthic zone.