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TLS Online TPP Program

#Question id: 10196

Why are light compensation points lower for shade plants?

#Unit 6. System Physiology – Plant
  1. Respiration rate in shaded plants are higher
  2. because only  a little photosynthesis is necessary to bring the net rates of CO2 exchange to negative
  3. this is because respiration rates in shade plants are very low

  4. because shaded plants ability to achieve negative CO2 uptake rates at lower PPFD values than sun plants

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TLS Online TPP Program

#Question id: 5445

#Unit 8. Inheritance Biology

A plant height in Maize is control by 3 pair of polygene .Two varieties of maize averaging 120 and 60 inches in height, respectively, are crossed. The F1 progeny is quite uniform averaging 90 inches in height. What is percent of F2 progeny that is resemble with either 120 cm or 60 cm height?
TLS Online TPP Program

#Question id: 9050

#Unit 9. Diversity of Life Forms

If an ecologist were studying the regional interactions among multiple populations of different species and how they influence the exchange of materials between their various environments, then this would be an example of which kind of research?
TLS Online TPP Program

#Question id: 9180

#Unit 9. Diversity of Life Forms

Which of the following statements can be accurately made about light in aquatic environments?
TLS Online TPP Program

#Question id: 16110

#Unit 7. System Physiology – Animal

what happens to the arterioles near the surface of the skin when the body temperature rises?
TLS Online TPP Program

#Question id: 10744

#Unit 10. Ecological Principles

Something that triggers a fixed action potential (FAP) is considered to be a(n) _____________.