Biology, 21.10.2019 19:30 Bryson2148
Some kinds of fish live most of their lives in salt water but lay their eggs in freshwater.
their ability to survive in different environments is an example of
adaptation
developmental stages
a habit
Answers: 1
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 04:00
The wings of insects, birds, and bats evolved independently but carry out similar functions. this is an example of a. analogous structures. b. embryonic structures. c. vestigial structures. d. homologous structures.
Answers: 1
Biology, 22.06.2019 09:00
Several billion years ago which gas was the least prevailant in the atmosphere
Answers: 1
Some kinds of fish live most of their lives in salt water but lay their eggs in freshwater.
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