How is natural selection related to sexual reproduction as opposed to asexual reproduction?
a) sexual reproduction results in many new gene combinations, some of which will lead to differential reproduction.
b) sexual reproduction results in the most appropriate and healthiest balance of two sexes in the population.
c) sexual reproduction results in the greatest number of new mutations.
d) sexual reproduction allows the greatest number of offspring to be produced.
e) sexual reproduction utilizes far less energy than asexual reproduction.

Wht happens as electrons in the electron transport chain release their energy

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.

The green colored pigment in chloroplasts is? a. nitrogen b. chlorophyll c. chlorophorm d. chlorofloromethane