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TLS Online TPP Program

#Question id: 4943

In what way were conditions on the early Earth of more than 3 billion years ago different from those on todayʹs Earth?

#SCPH06 I Botany

  1. only early Earth had water vapor in its atmosphere.

  2. Only early Earth was intensely bombarded by large space debris.

  3. Only early Earth had an oxidizing atmosphere.

  4. Less ultraviolet radiation penetrated Earthʹs early atmosphere.

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TLS Online TPP Program

#Question id: 18388

#SCPH28 | Zoology

Remediation of Xenobiotics are done because they cause various hazards
TLS Online TPP Program

#Question id: 429

#SCPH05 I Biotechnology

An organism that uses organic molecules as carbon sources and obtains energy by oxidizing inorganic molecules is a(an) ________.
TLS Online TPP Program

#Question id: 3020

#SCPH05 I Biotechnology

During which phase of the bacterial growth curve does the total number of viable cells decline?
TLS Online TPP Program

#Question id: 23201

#SCPH06 I Botany

The resolving power of Transmission electron microscopy is derived from _______________
TLS Online TPP Program

#Question id: 2073

#SCPH05 I Biotechnology

The phosphate transport system in bacteria imports phosphate into the cell even when the concentration of phosphate outside the cell is much lower than the cytoplasmic phosphate concentration. Phosphate import depends on a pH gradient across the membrane—more acidic outside the cell than inside the cell. In this bacterial cell, phosphate transport is an example of: