The first dinosaurs, leading to the first public dinosaur craze, were discovered in
a. England
b. Australia
c. South America
d. Africa
e. China
A
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What environmental factor might lead to year-round, rather than seasonal, reproductive activity?
A. a yearly rainy season B. stable food supplies C. changes in day length D. daily ocean tides E. frequent large temperature changes
Answer the following statements true (T) or false (F)
1. The ecological footprint of an average Egyptian is greater than that of an average American. 2. Random dispersion is rare compared to clumped dispersion. 3. Humans are iteroparous. 4. Demography is the study of how births and deaths change population sizes over time.
Which of the following is a biofilm?
a. dental plaque b. a bacterial capsule c. elongated pili d. an oil slick e. none of these are examples of biofilms
Which of the following statements is not an accurate statement about thymine dimers?
(a) Thymine dimers can cause the DNA replication machinery to stall. (b) Thymine dimers are covalent links between thymidines on opposite DNA strands. (c) Prolonged exposure to sunlight causes thymine dimers to form. (d) Repair proteins recognize thymine dimers as a distortion in the DNA backbone.