TLS Online TPP Program

#Question id: 11137


The motor (somatic nervous) system can alter the activities of its targets, the skeletal muscle fibers, because ________.

#Unit 7. System Physiology – Animal
  1. it is electrically coupled by gap junctions to the muscles
  2. its signals bind to receptor proteins on the muscles
  3. its signals reach the muscles via the blood
  4. it is connected to the internal neural network of the muscles
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TLS Online TPP Program

#Question id: 3418

#Unit 11. Evolution and Behavior

Which of the best explanation of directional natural selection occur by change in environmental condition?

A. Increase in the frequency of dark-colored mutants in polluted areas, became known as industrial melanism

B. Numerous insect pests become resistant to insecticides and numerous bacteria become resistant to antibiotics.

C. A plant that is too short may not be able to compete with other plants for sunlight. However, extremely tall plants may be more susceptible to wind damage

D- Beetles move into a new environment with patches of light-green moss and dark-green shrubs, both light and dark beetles might be better hidden (and survive better) than medium-green beetles

TLS Online TPP Program

#Question id: 19825

#Unit 12. Applied Biology

The elicitor produced by a pathogen is which type of molecule 1. Protein encoded by an avirulence gene 2. Products of metabolic activity of this protein Which of them are correct?

1. Protein encoded by an avirulence gene

 2. Products of metabolic activity of this protein

Which of them are correct? 

Which of them are correct?ch of them are correct? 

TLS Online TPP Program

#Question id: 4932

#Unit 10. Ecological Principles

Which of the following is the best hypothesis regarding origins of nucleic acids?

TLS Online TPP Program

#Question id: 9253

#Unit 9. Diversity of Life Forms

A certain species of pine tree survives only in scattered locations at elevations above 2,800 meters in the western United States. To understand why
this tree grows only in these specific places, an ecologist should ________.

TLS Online TPP Program

#Question id: 9578

#Unit 10. Ecological Principles

Bergmann’s rule states that,