The differential distribution of wing length in Drosophila, with larger wings in northern areas and smaller wings in
southern climates, provides evidence that:a.
wing length is not a heritable trait.
b. the fossil record is usually inaccurate.
c. the molecular clock cannot be applied to fruit fly traits.
d. chance is the most important agent in evolutionary change.
e. natural selection is the most important agent in evolutionary change
e
You might also like to view...
The double helix of DNA is composed of building blocks called amino acids.
a. monosaccharides. b. phospholipids. c. disaccharides. d. nucleotides
The animal in the above photograph was adversely
affected by __________ and is making a comeback thanks to __________. a. global cooling; heat producing chemical added to their diet b. sexually transmitted viruses; a new vaccine c. limited number of natural cavities; artificial nesting boxes d. high incidence of males being born; transplantation of females from other areas e. all of these
Which of the following cell types is responsible for the humoral immune response?
A) B cells B) neutrophils C) natural killer cells D) macrophages
Hemagglutination is ________.
A. the binding of iron in the process of a viral suspension B. the clumping together of red blood cells in the presence of a viral suspension C. the clumping together of infected cells in the presence of a viral suspension D. None of the choices are correct.