Compare and contrast monotremes and Metatheria (marsupials). Identify two representatives of each
group. What will be an ideal response?
Both monotrenes and marsupials belong to the clade Protheria.
Monotrenes are egg laying mammals. Monotrenes are represented by duck billed platypus.The
marsupials are pouched animals that bear their young live. Kangaroos represent marsupials.
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Which protozoan parasite can invade the intestinal wall using a protease enzyme that not only breaks down the wall tissue but also cleave IgA, IgG, and complement components?
A. Cryptosporidium parvum B. Giardia intestinalis C. Cyclospora cayetanensis D. Entamoeba histolytica
Respond to statements 91–95 in reference to the five kinds of
species interactions listed below. a. competition b. parasitoidism c. mutualism d. commensalism e. parasitism E 91. The relationship between a dog and a wood tick is this. M 92. The interaction between a human and the intestinal bacterium E. coli is usually this. M 93. The interaction between two closely related species of woodpeckers that live in a temperate forest is likely to be this. M 94. If a wasp lays its eggs inside the larva of a fly, the interaction is this. M 95. When a tropical bird places its nest in association with a wasp nest on the same tree, the interaction is this.
Surgical removal of the pancreas would
A. prevent the production of chyme in the stomach. B. block the secretion of bile. C. eliminate the ability to store bile in the gallbladder. D. increase the acidity of the small intestine. E. All of these changes would be a result of pancreas removal.
In an adult male, the ____ extends through the inguinal canal
a. scrotum b. ejaculatory duct c. vas deferens d. seminal vesicles e. urethra