In which type of synovial joint does one bone with a convex non-hemispherical surface fit into the concave depression of another

What word is used to describe differences of individual organisms

Why would a drug that damages capsids treat a viral infection? a. capsids prevent the lytic cycle from beginning. b. transduction requires a capsid. c. viruses use capsids to increase genetic variation. d. capsids provide protection for viruses.

Four types of motile cells in human body?