Dna gets duplicated during a process called replication when does it happen

In the african savanna,more wildebeests are born than the environment can support. which is most likely to happen over a period of years as a result

Talking listening and reacting non verbally are all part of communicating

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.