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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?

#Unit 11. Evolution and Behavior

  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: 23845

#Unit 2. Cellular Organization

Which type of molecules bind to myosin head during the skeletal muscle contraction?
TLS Online TPP Program

#Question id: 27490

#Unit 1. Molecules and their Interaction Relevant to Biology

What is the increasing order of concentration of D glucose in solution
TLS Online TPP Program

#Question id: 1552

#Unit 4. Cell Communication and Cell Signaling

A common clinical pathological finding during a viral infection is
TLS Online TPP Program

#Question id: 11620

#Unit 8. Inheritance Biology

The expression of some genes is significantly affected by their parental origin, , the differential expression of genetic material depending on whether it is inherited from the male or female parent, is called
TLS Online TPP Program

#Question id: 1004

#Unit 1. Molecules and their Interaction Relevant to Biology

Which structure below is PRPP?