Brown-headed Cowbirds lay their eggs in other birds' nests, relying upon another species to raise their chicks. Although many species continue to raise the cowbird chicks, some species reject the eggs and offspring.
Further, Brown-headed Cowbirds are rare inside large forests. Which of the following probably represents an adaptation in response to this cowbird threat? A) fewer breeding birds of other species rejecting cowbird chicks
B) breeding birds of other species nesting in deep forests
C) breeding birds of other species attracting cowbird adults to their region
D) breeding birds of other species changing to a different type of bird song
Question 2
Photovoltaic cells are commonly used to power
A) lawn mowers.
B) lighthouses.
C) calculators.
D) industrial manufacturing.
DNA analysis of phylogenetic relationships among modern and extinct flightless birds by Cooper and c
Blunt headed tree snakes
A taxonomy of the human species.
White Bread vs. Brown Bread