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TLS Online TPP Program

#Question id: 9238

Which of the following is a consequence of biological magnification?

#Unit 9. Diversity of Life Forms

  1. Toxic chemicals in the environment pose greater risk to top-level predators than to primary consumers.

  2. Populations of top-level predators are generally smaller than populations of primary consumers.

  3. Only a small portion of the energy captured by producers is transferred to consumers.

  4. The amount of biomass in the producer level of an ecosystem decreases if the producer turnover time increases

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TLS Online TPP Program

#Question id: 11369

#Unit 9. Diversity of Life Forms

If new genetic variation in the experimental populations arose solely by spontaneous mutations, then the most effective process for subsequently increasing the

prevalence of the beneficial mutations in the population over the course of generations is
TLS Online TPP Program

#Question id: 5649

#Unit 5. Developmental Biology

From earliest to latest, the overall sequence of early development proceeds in which of the following sequences?
TLS Online TPP Program

#Question id: 19291

#Unit 9. Diversity of Life Forms

Reptilian embryos are protected from desiccation by a leathery shell. Similarly, which pair of structures protects seed plantsʹ embryos and male gametophytes, respectively, from desiccation? 
TLS Online TPP Program

#Question id: 11085

#Unit 7. System Physiology – Animal

The diagrams show changes in the partial pressures of oxygen and carbon dioxide as blood flows from the arterial end to the venous of the pulmonary capillaries. Which diagram best depicts the normal relationship between Po2 (red line) and Pco2 (green line) during resting conditions?
TLS Online TPP Program

#Question id: 3946

#Unit 3. Fundamental Processes

Which type of mutation is likely to be the most harmful?