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TLS Online TPP Program

#Question id: 9052

Which of the following causes seasons on Earth?

#Unit 9. Diversity of Life Forms
  1. the variation in proximity of the Earth to the sun at different times of the year
  2. the constant tilt of the Earth, combined with its orbit around the sun
  3. the distance between the Earth and the sun in winter versus in the summer
  4. the variation or wobble of Earth's tilt during the year
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TLS Online TPP Program

#Question id: 4998

#Unit 11. Evolution and Behavior

Many species of snakes lay eggs, but in the forests of northern Minnesota where growing seasons are short, only live-bearing snake species are present. This trend toward species that perform live birth is an example of
TLS Online TPP Program

#Question id: 11446

#Unit 7. System Physiology – Animal

A physiologist is studying the homeostatic control of blood pH. What type of receptor might be responsible for detecting changes in blood pH?
TLS Online TPP Program

#Question id: 12044

#Unit 7. System Physiology – Animal

The proenzyme pepsinogen is secreted mainly from which of the following structures?
TLS Online TPP Program

#Question id: 23909

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following forest types is most widespread in India?
TLS Online TPP Program

#Question id: 2604

#Unit 2. Cellular Organization

Best inducer of the lac operon;