What is an example of a positive form of thigmotropism? a) roots avoiding large rocks in the soil by growing and extending around them
b) roots growing laterally if there is too much resistance to them growing down
grapevine tendrils that coil around objects like stakes or trellises to stabilize
them
d)
mimosa plant folding its leaves when touched in an effort to keep them from
being eaten

In iceland, the mid atlantic ridge runs through the center of the contry. what can you conclude about the apperence of iceland many thousands of years from now?

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.

Asegment of dna that codes for rna and a protein is a