Biology, 30.04.2021 17:30 Alienhead6187
Rabbits must be always aware of predators that may catch and eat them. In natural selection what would we consider these predators?
Answers: 2
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 02:00, Ilovesnoopy69
1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area
Answers: 2
Biology, 22.06.2019 20:00, northpolea
Idon’t understand this can someone give me the answer? you
Answers: 1
Rabbits must be always aware of predators that may catch and eat them. In
natural selection what w...
Mathematics, 03.02.2020 19:45
Business, 03.02.2020 19:45
Mathematics, 03.02.2020 19:46
Mathematics, 03.02.2020 19:46