Biology, 04.02.2020 06:54, tiaholmes31
During autumn, the leaves of the plants turn red and fall, resulting in complete defoliation of the trees. which mechanism is taking place?
dormancy
senescence
photoperiodism
Answers: 2
Biology, 20.06.2019 18:04, makenziehook8
The bacteria found in a soil is usually harmful and measure are taken to remove any traces of microorganisms 1. true 2. false
Answers: 1
Biology, 22.06.2019 01:30, ayoismeisalex
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 02:30, Destinywall
Did you know that a single bee would have to go to over 2 million flowers to make a single pound of honey?
Answers: 1
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