In a hypothetical environment, fishes called pike-cichlids are visual predators of algae-eating fish (in other words, they locate their prey by sight). If a population of algae-eaters experiences predation pressure from pike-cichlids, which of the following is least likely to be observed in the algae-eater population over the course of many generations?
A) selection for drab coloration of the algae-eaters
B) selection for nocturnal algae-eaters (active only at night)
C) selection for larger female algae-eaters, bearing broods composed of more, and larger, young
D) selection for algae-eaters that become sexually mature at smaller overall body sizes
E) selection for algae-eaters that are faster swimmers
A hypothetical hybrid zone.
Shown eating. Cougars are ambush predators, feeding mostly on deer and other mammals.
Vision with macular degeneration is experienced with an inability to focus in the center of the visu
Cystoscopy. In this procedure, a specialized endoscope with a rigid tube, known as a cystoscope, is
The illusory bands visible in this figure are often called Mach bands, although Mach used a ...
Ray-Finned Fishes: Perch