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
Evolution of tetrapod visual opsins
Arthroscopic surgery. In this illustration, the knee joint is undergoing surgery with a specialized
Optic nerve, optic chiasm, ¬thalamus, and visual cortex.
Internal and External Environment
A resonance tube, called a Helmholtz resonator, is used on the intake duct between the air filter ...
The nucleus is bounded by a double membrane called the nuclear envelope