Which of the following cells control the differentiation HSCs (hematopoietic stem cells)?

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#Question id: 15727

#XL - S Microbiology

The stationary phase is forced on the culture by , identify correct option

1. Depletion of the nutrients

2. Due to accumulation of cellular wastes

3. Accumulation of the nutrients

4. Removal of cellular wastes

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#Question id: 17672

#XL - S Microbiology

Protection from desiccation

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#Question id: 3479

#XL - T Zoology

Which of the following could be classified as habituation?

A) You enter a room and hear a fan motor. After a period of time, you are no longer aware of the motorʹs noise.

B) You hear a horn while driving your car. You step on the brakes but notice the sound came from a side street. You resume your previous speed.

C) One morning you awake to a beep-beep-beep from a garbage truck working on a new early morning schedule. The next week the garbage truck arrives at the same time and makes the same noise, but does not wake you up.

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#Question id: 10328

#XL - S Microbiology

The term that is most appropriately associated with clade is

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#Question id: 15520

#XL - S Microbiology

Double-negative (DN) thymocytes that have successfully rearranged their TCRβ chains are valuable, and are identified and expanded via a process known as