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erica [24]
3 years ago
15

Which molecular substance is found on the surface of pathogens that can be detected by leukocytes to launch an immune response?

Biology
1 answer:
labwork [276]3 years ago
7 0
I’m pretty sure the answer is Antigens
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Describe the Cell Cycle [Interphase, G1 phase, S phase, G2 phase]<br> describe them all please :)
Svet_ta [14]

<em>G1, S and G2 phases are all cumulatively referred to as interphase involving the growth of a cell and the replication of its DNA. Initially in G1 phase, the cell grows physically and increases the volume of both protein and organelles. In S phase, the cell copies its DNA to produce two sister chromatids and replicates its nucleosomes. Finally, G2 phase involves further cell growth and organisation of cellular contents. The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells. The S phase only begins when the cell has passed the G1 checkpoint and has grown enough to contain double the DNA. S phase is halted by a protein called p16 until this happens.</em>

8 0
3 years ago
Read 2 more answers
Free points :)
Reptile [31]
Thank you :), I really needed that, everything has just been going down lately
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3 years ago
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12. A farmer is struggling to control the population of a certain insect on his farm. After researching population control techn
ASHA 777 [7]

The farmer's action most likely have a negative impact on the ecosystem because may be there is no predator or controlling agent of that bird.

<h3>Why introduction of new bird cause problem?</h3>

We know that one organism is responsible for controlling the population of other organism so if such type of controlling agent is present, the organism grow rapidly and can harm the whole ecosystem.

So we can conclude that farmer's action have a negative impact on the ecosystem due to presence of no predator or controlling agent of that bird.

Learn more about bioagent here: brainly.com/question/842527

6 0
2 years ago
Contact lens solution is described as a sterile, buffered, isotonic aqueous solution. Explain the importance of the adjectives b
OLEGan [10]

A contact lens is a lens placed on the cornea of the eye.


Importance of buffers in contact lens products:

Buffers: They aim to keep the pH of the solutions at values ​​between 6.6 and 7.8 in order to maintain the lens parameters and the effectiveness of the solutions. They are made by the combination of an acid and its sodium salt (phosphate and acetate for example). Borate and citrate buffers are used.


Importance of isotonicity in contact lens products:

The solution composed by isotonic saline solution.

Isotonia is expressed by osmolarity or cryoscopic lowering

- 0.236 to 0.446 mOsmoles / l (increases during the day)

- If the osmolarity of the mixture is different from that of the tears, it causes discomfort and irritation

• Increased tear secretion

• Increase the blink frequency

- If hypotonia, entry of water to the epithelial cells, if hypertonia: inverse

- Osmolarity restored 1 or 2 minutes after instillation

7 0
3 years ago
Without the radioactive probes, would the DNA show up on the x-ray film?
natulia [17]
Its a yes or no question and I think the answer is no
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3 years ago
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