viruses frequently expose unique chemical structures only during their replication inside host cells. Many of these can be detected via intracellular receptors that bind exposed chemical moieties while still inside the host cell. This can trigger an immediate antiviral response in the infected cell that blocks further virus replication. At the same time, this initiates the secretion of chemical warning signals sent to nearby cells to help them guard against infection (a neighborhood watch system!). virus is not recognised which receptor?

#Question id: 9609

#Unit 9. Diversity of Life Forms

Dozens of potato varieties exist, differing from each other in potato-tuber size, skin color, flesh color, and shape. One might construct a classification of potatoes based on these morphological traits. Which of these criticisms of such a classification scheme is most likely to come from an adherent of the phylocode method of classification?

#Question id: 9608

#Unit 9. Diversity of Life Forms

Darwin analogized the effects of evolution as the above-ground portion of a many-branched tree, with extant species being the tips of the twigs. The common ancestor of two species is most analogous to which anatomical tree part?

#Question id: 9607

#Unit 9. Diversity of Life Forms

The common housefly belongs to all of the following taxa. Assuming you had access to textbooks or other scientific literature, knowing which of the following should provide you with the most specific information about the common housefly?

#Question id: 9604

#Unit 9. Diversity of Life Forms

The various taxonomic levels (viz, genera, classes, etc.) of the hierarchical classification system differ from each other on the basis of

#Question id: 9601

#Unit 9. Diversity of Life Forms

The relative lengths of the frog and mouse branches in the phylogenetic tree indicate that

#Question id: 9600

#Unit 9. Diversity of Life Forms

 Based on the tree below, which statement is not correct?