Briefly explain some of the advantages and disadvantages of living in social groups
What will be an ideal response?
ANSWER: Social animals face more competition for food, nesting sites, and other resources. They also
tend to contract diseases and parasites more easily, due to frequent contact between
individuals. The advantages of social behavior include safety in numbers for prey animals.
Predators can take on larger prey when working together. In higher animals, learning may
take place more effectively in social groups.
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Leptospirosis is often contracted
A. by eating infected animals. B. by eating contaminated vegetables. C. from contaminated animal urine. D. by the respiratory route.
The world ocean covers 70.8% of the earth's surface
Indicate whether the statement is true or false
Which of the following is a reactant used in the light-dependent reactions?
a. carbon dioxide b. glucose c. oxygen d. water
After ONE round of DNA replication in Meselson and Stahl's classic experiment, ________
A) the conservative model was conclusively proven to be an inaccurate model B) the semiconservative model was conclusively proven to be the accurate model C) both the conservative and the semiconservative models were still possibilities D) all three models of replication were still possibilities E) the dispersive model was conclusively proven to be an inaccurate model