Question

Evolution ;

You observe two species of snakes that each has bright yellow markings on its sides. In one species only the females have the bright coloration. Bright coloration makes snakes more visible to predators.

A) Given only this information in which species would you predict that males and females contribute more equally to the costs of reproduction and why?

B) For the species that experiences less equal investment in reproduction draw a graph that relates the number of matings to the number of offspring produced. Draw a line for the trend you would expect in males and a line for the females. Be sure to label each line. Explain your graph.

Answer 1

A)Species, other than species in which only female have bright colouration, will contribute more equally to the cost of reproduction because in species with only bright coloration female will suffer more threat to predators and thus their number will decrease.

B)