#Question id: 21116
#Unit 12. Applied Biology
#Question id: 26577
#Unit 3. Fundamental Processes
#Question id: 8854
#Unit 9. Diversity of Life Forms
Which cells in a sponge are primarily responsible for trapping and removing food particles from circulating water?
#Question id: 8840
#Unit 9. Diversity of Life Forms
There are at least a dozen known species in the extinct genus Lystrosaurus. If each species was suited to a quite different environment, then this relatively large number of species is likely due to
#Question id: 2896
#Unit 2. Cellular Organization
Different modification states of the residue Lys-9 on the tail of histone H3 could be interpreted to have different meanings. One example of how a histone modification can apparently influence a second modification present nearby is illustrated by the Drosophila HP1 protein. Which of the following statement is correct regarding this kind of epigenetic regulation?