Which term refers to a group that comprises the majority of mammal species living today—which are also known as placental mammals—and includes such diverse species as rodents, bats, whales, and primates?

a. metatherians
b. anthropoids
c. protherians
d. eutherians


Ans: d. eutherians

Biology & Microbiology

You might also like to view...

Which of the following acts as a carrier of foreign DNA and is needed to clone a gene?

A. plasmid B. viral vector C. fungal vector D. plasmid and viral vector E. viral vector and fungal vector

Biology & Microbiology

The most important vector of Lyme disease in the eastern United States is

A. Dermacentor virabilis. B. Dermacentor andersoni. C. Staphylococcus aureus. D. Ixodes scapularis.

Biology & Microbiology

Which of these hydrocarbons has a double bond in its structure?

a. C3H8 b. C2H6 c. CH4 d. C2H4 e. C2H2

Biology & Microbiology

Which of the following does NOT describe the

Casparian strip? a. waxy b. component of the endodermis c. permeable d. barrier e. waterproof

Biology & Microbiology