A student takes a trip to Brazil to study the mating habits of the vampire bat. The student journeys through the under-story of a giant climax community dominated by huge trees. It rains every day on his journey. The area receives up to 600 cm of rainfall yearly. After seeing many species of birds, insects, and reptiles, the student is amazed by how much biodiversity there is in the region. Which biome is the student in?​

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.

Did you know that a single bee would have to go to over 2 million flowers to make a single pound of honey?

Recombinant dna (rdna) creates offspring which are genetically identical to the parent is the process of breeding only organisms with desirable traits involves the removal of the nucleus of a cell combines genes from organisms of different species in a lab