The fossil record represents _____ of the total species that have ever lived
1.90%
2.less than 1%
3.75%
4.50%
5.5%
2
You might also like to view...
Males and females often differ in their reproductive strategies due to the fact that males can increase the number of
offspring they produce by ____ while females reproduce most successfully by ____.
a. mating with a high-quality female; mating with a high-quality male b. driving off other males; defending a productive territory c. defending a productive territory; enlisting multiple males to aid in raising her offspring d. mating with multiple females; mating with a high-quality male e. mating with multiple females; mating with multiple males
The Primate order arose about ____ years ago, in the ___ period.
A. 60 million; Tertiary B. 150 million; Jurassic C. 100 million; Cretaceous D. 10 million; Tertiary E. 1 million; Quaternary
The most complete listing of the organisms the H5N1 strain of influenza virus can infect is ____.
A. humans B. pigs C. birds D. humans and pigs E. humans, pigs and birds
The ________ is the outermost layer of skin, consisting of dying, waterproof cells.
Fill in the blank(s) with the appropriate word(s).