Answers: 2
Biology, 22.06.2019 01:30
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.
Answers: 1
Biology, 22.06.2019 08:20
Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.
Answers: 2
Biology, 22.06.2019 09:30
The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?
Answers: 1
Biology, 22.06.2019 10:00
Suppose you use three different scale to weigh a bag of organges. one scale says the nag weighs 2.1 lb, and third says it weighs 2.1 lb. the actual weight of the bag of organges is 2.153 lb. which of the following best decribes these results?
Answers: 3
What is the fastest bird?...
History, 23.09.2019 04:30
Mathematics, 23.09.2019 04:30
Social Studies, 23.09.2019 04:30
Geography, 23.09.2019 04:30
Social Studies, 23.09.2019 04:30
Social Studies, 23.09.2019 04:30
Mathematics, 23.09.2019 04:30
Biology, 23.09.2019 04:30
Mathematics, 23.09.2019 04:30
Mathematics, 23.09.2019 04:30
English, 23.09.2019 04:30
English, 23.09.2019 04:30
Chemistry, 23.09.2019 04:30