Practice Questions

TLS Online TPP Program

#Question id: 9180

Which of the following statements can be accurately made about light in aquatic environments?

#Unit 9. Diversity of Life Forms

Water equally reflects and absorbs all wavelengths of light.
Longer wavelengths penetrate to greater depths.
Light penetration largely limits the distribution of photosynthetic species.
Most photosynthetic organisms avoid the surface where the light is too intense.

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TLS Online TPP Program

#Question id: 23203

#Unit 13. Methods in Biology

The biological materials have little intrinsic capability to ____________________

TLS Online TPP Program

#Question id: 23204

#Unit 13. Methods in Biology

Shadow casting is a technique in electron microscopy visualizing

TLS Online TPP Program

#Question id: 23205

#Unit 13. Methods in Biology

Which type of electrons are excited in SEM when intense electron beam is applied over sample?

TLS Online TPP Program

#Question id: 23206

#Unit 13. Methods in Biology

What does secondary electrons stands for during laser beam being applied.

TLS Online TPP Program

#Question id: 23207

#Unit 13. Methods in Biology

Generation of secondary electron occurs in which type of microscopy?

TLS Online TPP Program

#Question id: 23209

#Unit 13. Methods in Biology

Which microscopy allows examination of three dimensional structure of specimen?