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TLS Online TPP Program

#Question id: 4655

Over evolutionary time, many cave-dwelling organisms have lost their eyes. Tapeworms have lost their digestive systems. Whales have lost their hind limbs. How can natural selection account for these losses?

#Section 2: Evolution

  1. Natural selection cannot account for losses, only for innovations.

  2. Natural selection accounts for these losses by the principle of use and disuse.

  3. Under particular circumstances that persisted for long periods, each of these structures presented greater costs than benefits.

  4. The ancestors of these organisms experienced harmful mutations that forced them to find new habitats that these species had not previously used.

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TLS Online TPP Program

#Question id: 11986

#Section 1: Ecology

Which of the following statements is (are) true of fixed action patterns? 
TLS Online TPP Program

#Question id: 11245

#Section 2: Evolution

Monogamy is most prevalent among ______ and is rare among ________.
TLS Online TPP Program

#Question id: 10647

#Section 1: Ecology

Use the graph to answer the following question


In the figure, which of the following survivorship curves implies that an animal may lay many eggs, of which a regular number die each year on a logarithmic scale?
TLS Online TPP Program

#Question id: 10632

#Section 2: Evolution

Three different population growth pattern related to population density are shown in figure
TLS Online TPP Program

#Question id: 12439

#Section 1: Ecology

We both want to dine at the same fine restaurant on the same day and at the same time. Unfortunately, there is only one seat left. Quickly assessing the situation, i (discreetly) hit you over the head with the hammer that i carry on the off chance that i might need to use one. I then proceed to the seat and enjoy the meal. This situation is most similar to