TLS Online TPP Program

#Question id: 23084


Which of the following is the technique used for the embryo culture?

#Unit 13. Advances in Biotechnology
  1. Organ cultures on plasma clots
  2. Organ cultures on agar
  3. Whole embryo cultures
  4. All of these
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TLS Online TPP Program

#Question id: 5014

#Unit 9. Evolution & Diversity of Life Forms

 Following geological time period and major evolutionary event?

I. Devonian                            A. Gymnosperms dominant

II. Jurassic                               B. Amphibians diversify; first reptiles

III. Carboniferous                  C. Mammals appear

IV. Triassic                           D. Seed plants appear

TLS Online TPP Program

#Question id: 5015

#Unit 9. Evolution & Diversity of Life Forms

 During which of the following largest mass extinction recorded in the history of life on Earth.

TLS Online TPP Program

#Question id: 5016

#Unit 9. Evolution & Diversity of Life Forms

Approximately how far back in time does the fossil record extend?

TLS Online TPP Program

#Question id: 5017

#Unit 9. Evolution & Diversity of Life Forms

Arrange these events from earliest to most recent.

1.  emission of lava in what is now Siberia at time of Permian extinctions

2.  emission of lava that solidified at the same time as iron-bearing terrestrial rocks began to rust

3.  emission of lava that solidified at the same time as rusted iron precipitated from seawater

4.  emission of lava in what is now India at time of Cretaceous extinctions

TLS Online TPP Program

#Question id: 5018

#Unit 9. Evolution & Diversity of Life Forms

Which event is nearest in time to the end of the period known as snowball Earth?

TLS Online TPP Program

#Question id: 5019

#Unit 9. Evolution & Diversity of Life Forms

A major evolutionary episode that corresponds in time most closely with the formation of Pangaea was the