For each example, select either cost of group living or benefit of group living. 1) Increased rate of disease spread. [1] 2) Greater opportunities for offspring care. [2] 3) Increased vigilance as described by the many-eyes hypothesis. [3] 4) High intraspecific competition. [4] 5) Increased visibility to predators. [5]
Read DetailsRegulating mechanisms influence the population growth rate. Some regulating mechanisms are density dependent, while others are density independent. Recall the population of barnacles that we discussed in class, shown below. Describe one density dependent and one density independent factor that may affect barnacle population dynamics and explain your reasoning. Advice: Make sure it’s clear which factor is which and that you understand why the factor is density dependent or density independent.
Read DetailsSelect the correct option about the statement below. Iteroparous organisms may have a higher chance of some of their offspring reaching adulthood because they reproduce several times throughout their lives and some of those reproductive events may occur at times with favorable environmental conditions. Iteroparous organisms are often unable to put all of their energy into each reproductive event because they need to save energy for future reproduction.
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