In a newly discovered species of bird, researchers observe t…
In a newly discovered species of bird, researchers observe the following: females build elaborate shelters decorated with brightly colored objects. These take roughly two full weeks to build, and are only used as displays. They are NOT used for nesting. males choose females to mate with based on the quality of their display. Females that build bigger, more colorful displays attract more mates. Based on this information and basic principles of sexual selection, we would predict that _____.
Read DetailsWe studied several different species interactions. Which of…
We studied several different species interactions. Which of the following species interactions are characterized as + / – interactions, where one species benefits and the other is harmed as a result of the interaction? Choose all the correct answers.
Read DetailsBelow is a simple aquatic food web. F and G are primary prod…
Below is a simple aquatic food web. F and G are primary producers. If a predator of species A were introduced, this would cause the population of species C to [a]. Introducing a predator of species A would be expected to [b] the net primary productivity (NPP) of this system.
Read DetailsFour individuals, A, B, C, and D are part of the same popula…
Four individuals, A, B, C, and D are part of the same population. A begs for food from B. B shares with A. A later begs for food from C. C does not share with A. Individuals in this population show reciprocal altruism. Which of the following could be predicted based on the principles of reciprocal altruism?
Read DetailsConsider the series mass-spring-damper system shown in the f…
Consider the series mass-spring-damper system shown in the figure with m=1 Kg, k=10 N/m, and c=2 N.sec/m where u is the displacement input. Find the state space-representation for the system by filling the blanks below. Hint: Note that
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