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#Question id: 2347


Diffusion of molecules across biological membranes that requires channels is called

#SCPH28 | Zoology
  1. active transport.

  2. the sodium-potassium pump.

  3. facilitated diffusion.

  4. osmosis.


Answer:- Option(s): 3


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#Question id: 19474

#SCPH28 | Zoology

The cry gene of B. thuringiensis produces a protein, which forms _________ in the bacterial spores.

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#Question id: 14150

#SCPH05 I Biotechnology

Which of the following statement is incorrect about BLOSUM?

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#Question id: 11458

#I Life Science/ Life Sciences Group – I-V

A person able to hear only low-frequency sounds would probably have which of the following structural problems in the ear?

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#Question id: 4565

#SCPH28 | Zoology

Darwinʹs mechanism of natural selection required long time spans in order to modify species. From whom did Darwin get the concept of Earthʹs ancient age?

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#Question id: 18593

#SCPH28 | Zoology

Some important events in the history of life on Earth are given below.
A. First dinosaurs appeared.
B. First reptiles appeared.
C. First insect fossils appeared.
D. First toothed birds appearance.
E. First wingless insect appeared.
F. Mammals like reptile arise
Match the above with the geological time periods and choose the correct combination,

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