The water content of plant cells depends on osmosis and turgor pressure. 

TLS Online TPP Program

#Id: 9418

#Unit 11. Evolution and Behavior

Selection favors mating displays that maximize a male’s lifetime fitness.

TLS Online TPP Program

#Id: 9419

#Unit 11. Evolution and Behavior

Intersexual selection - Members of one sex, usually females, choose mates based on attractive characteristics such as color of plumage or sound of courtship song.

TLS Online TPP Program

#Id: 9420

#Unit 11. Evolution and Behavior

Runaway selection: Females choose mates without the offering of obvious material benefits or parenting skills, and instead make their choices based on plumage color or courtship peahen may choose her peacock with long tail feather.

TLS Online TPP Program

#Id: 9421

#Unit 11. Evolution and Behavior

Handicap principle: Long tail feathers function as a sign of an individual’s genetic quality because the bearer must be able to afford this energetically costly trait. 

TLS Online TPP Program

#Id: 9422

#Unit 11. Evolution and Behavior

Intrasexual selection - Members of one sex, usually males, compete over partners, and the winner performs most of the mating.

TLS Online TPP Program

#Id: 9423

#Unit 11. Evolution and Behavior

Sexual dimorphism in primates