#Question id: 747
#1. Molecules and their Interaction Relevant to Biology
In nucleic acids, the bases are covalently attached to the 1-position of a pentose sugar ring, to form a:
#Question id: 16321
#7. System Physiology – Animal
#Question id: 1569
#4. Cell Communication and Cell Signaling
A bacterium entering the body through a small cut in the skin will do which of the following?
#Question id: 4967
#11. Evolution and Behavior
Recent evidence indicates that the first major diversification of multicellular eukaryotes may have coincided in time with the
#Question id: 5028
#11. Evolution and Behavior
What is the probable sequence in which the following clades of animals originated, from earliest to most recent?
1. tetrapods
2. vertebrates
3. deuterostomes
4. amniotes
5. bilaterians