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PilotLPTM [1.2K]
3 years ago
5

Answer these question somebody I’m having trouble

Biology
1 answer:
saw5 [17]3 years ago
5 0

your answer is in attachment

hope it helps ☺️✌️

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At the start of the lab, you will test known samples in order to see what positive and negative test results look
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Answer:

I feel it's to easily differentiate the positive from the negative...... like in gram staining of bacteria, the colour tell us which bacteria is gram positive or gram negative...... I just feel that this is science and it is advisable to know what the opposite result of an experiment should look like.

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3 years ago
Viruses can only be studied in detail using a(n) _____.
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C. electron microscope
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3 years ago
Read 2 more answers
Please quick answer without explanation ​
DiKsa [7]

Answer:

The answer is b. Both of them are characterized by selective permeability.

Explanation:

  • Option a. states that both, the nuclear and the cell membrane have two layers. This is only true for the nuclear membrane that consists of two lipid bilayers whereas the plasma membrane only contains one layer.
  • c. Only the nuclear membrane has nuclear pores that connect the two bilayers. The pores act as protein channels or passages that allow transport of materials. The cell membrane does contain channel proteins or transmembrane proteins but not protein channels.
  • d. The nuclear membrane separates nuclear contents from the cytoplasm whereas the cell membrane separates cellular contents from the extracellular environment.
5 0
3 years ago
Species found in only one place on earth are called ________ species.
pochemuha

Answer:

endemic species

Explanation:

Species found in only one place on earth are called endemic species

4 0
2 years ago
How will a organism be benefited if it reproduces through spores
exis [7]

Answer:

Spore can survive under unfavorable conditions as they are covered by a hard protective coat. Spores can grow to produce new plants and does not require sexual interaction with another organism. Due to their small size and light weight, they can be dispersed easily.

Spores can remain dormant till favourable conditions become available. b. Spores help an organism to tide over the bad phase. Spores can be spread through water, air or animals and thus is good for the spread of an organism to more places.

Explanation: hope this helps bro! (:

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3 years ago
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