In a population of brown snakes, a snake is born with a white-spotted pattern. Which factor will have the MOST influence on whether this trait will become common in the brown snake population? A) the ability of the snake to survive to reproduce
B) the appearance of other new traits in the baby snake
C)the history of the pattern in previous snake populations
D)the presence of thermal energy changing the snake pattern

Scientific method and data analysisa biology student wanted to determine if there is a relationship between resting heart rate and bodyheight. she gathered information from 12 classmates and constructed the table below.resting heart rate (beats per minute)student height (cm)155. 156156165180180190194195

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.

What materials must dams have to produce electricity, and what must occur?