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Volgvan
3 years ago
11

What is a blastocyst ?

Biology
2 answers:
alexdok [17]3 years ago
7 0
The correct answer is <span>hollow ball of cells formed after a fertilized cell undergoes cell division. 

It is found in the earliest development of mammals and an embryo forms out of it. 

</span><span>The definition of blastocyst 
 mammalian blastula in which some differentiation of cells has occurred.</span>
igor_vitrenko [27]3 years ago
7 0
The correct awnser is D hope that helps 
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Explanation:

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since ph can affect the activity of the antibiotics why would the Kirby bauer test require that the agar have a ph of 7.4
Nutka1998 [239]

We have that for the Question "since ph can affect the activity of the <u>antibiotics</u> why would the Kirby bauer test require that the agar have a ph of 7.4" it can be said that

  • Why the Kirby <u>bauer </u>test require that the agar have a ph of 7.4 is because while <em>agents </em>may be in excessive activity, given a scenario that the <em>pH </em>is to exceed 7.4 the results might inverse.

From the question we are told

since ph can <em>affect </em>the activity of the antibiotics why would the Kirby <u>bauer </u>test require that the agar have a ph of 7.4

Generally

Agar has a ph value that should exist between 7.2 and 7.4 within a room temperature,given it  solidifies and this should be when initially prepared

Therefore

Why the Kirby <u>bauer </u>test require that the agar have a ph of 7.4 is because

while <em>agents </em>may be in excessive activity, given a scenario that the <em>pH </em>is to exceed 7.4 the results might inverse.

For more information on this visit

brainly.com/question/1641336  

7 0
3 years ago
What is the best description of the chromosomes by the end of prophase of mitosis
Hitman42 [59]
The chromosomes become more compact and tightly coiled. They are ready to separate. :) 
Hope this helps! 
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Explanation:

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