#Question id: 10925
#Unit 7. System Physiology – Animal
During the second trimester of pregnancy, where is the predominant site of red blood cell production?
#Question id: 11638
#Unit 9. Diversity of Life Forms
Which group includes members that are important primary producers in ocean food webs, causes red tides that kill many fish, and may even be carnivorous?
#Question id: 28039
#Unit 1. Molecules and their Interaction Relevant to Biology
Proteins particularly those with molecular masses >100 kD, consist of more than one polypeptide chain. These polypeptide subunits associate with a specific geometry. The spatial arrangement of these subunits is known as
#Question id: 18663
#Unit 13. Methods in Biology
#Question id: 4621
#Unit 11. Evolution and Behavior
DNA sequences in many human genes are very similar to the sequences of corresponding genes in chimpanzees. The most likely explanation for this result is that