The production of sterile male ligers is an example of __________.
A. A post-zygtic barrier
B. The founder effect
C. A pre-zygotic barrier
D.. Sympatric speciation
Answer: A. A post-zygtic barrier
You might also like to view...
Glucose, sucrose, and cellulose are examples of:
A) carbohydrates. B) disaccharides. C) monosaccharides. D) polysaccharides.
Antimicrobials effective against a wide variety of microbial types are termed ________.
A. semisynthetic drugs B. synthetic drugs C. narrow-spectrum drugs D. antibiotics E. broad-spectrum drugs
Forests help to regulate the global climate by
A) releasing oxygen B) absorbing carbon dioxide C) absorbing pollutants D) emitting ozone E) preventing soil erosion
In the presence of infection, white blood cells release endogenous chemicals called _________, which produce fever.
A) pyrogens B) histamines C) leukotrienes D) catecholamines