Trình bày con đường chuyển sang nội kí sinh của giun tròn ?

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Answer 1

Answer:

Answer:

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Need help with 13 and 14

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Answer:

13) A

14) I think is A but the question I believe is directly tied to the writing you have

Explanation:

2. What happens to the spectral lines of a starthat is moving toward Earth?
A. The waves spread out, and the frequency of
each line increases.
B. The waves spread out, and the frequency of
each line decreases.
C. The waves compress, and the frequency of
each line increases.
D. The waves compress, and the frequency of
each line decreases.

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Answer:

A. The light waves squeeze together increasing wavelength

Explanation:

Which of the following scenarios describes an example of epistasis?

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Answer:

In rabbits and many other mammals, one genotype (ee) prevents any fur color from developing.

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What are mechanisms of action of Triclosan and Povidone?

Answers

Answer:

Povidone: its action is produced by oxidation and inactivation of cellular components.

Triclosan: is absorbed by intact skin which determines its persistence and its speed of action is intermediate.

Explanation:

Povidona:

- It presents the same mechanism of action and spectrum of iodine.

- It is a water-soluble compound that results from the combination of iodine and polyvinylpyrrolidone, which improves the solubility of iodine and allows its gradual release into tissues. This effect determines less skin irritation and greater product availability over time.

- The term "available iodine" refers to the amount of iodine available as a reservoir and that of free iodine to the percentage in solution in working condition, that is, a 10% povidone iodine solution, contains 1% of available iodine and the iodine concentration Free is 1 to 2 parts of a million that remains until the available iodine is depleted. This product advantage is lost when diluted in water, since in these circumstances it behaves as an aqueous solution of iodine.

- Its activity can be diminished by the presence of blood or other organic matter.

- The concentrations commonly used as a surgical scrubber are 7.5% and 8% and in the one used for cures it is 10%.

- In relation to tincture of iodine or lugol, it presents less dermal irritation. They should be used with caution in newborns and burned

- Its antiseptic action is classified between high level and intermediate level. They are lethal in minutes for bacteria, fungi, viruses, protozoa, amoeba cysts and spores. However, in front of dry spores it requires a longer exposure time (hours).

- Iodized antiseptics have the advantage of being cheap.

Triclosan:

- It is a relatively new phenolic derivative that acts causing damage to the cell wall of microorganisms. It is broad-spectrum bacterial, better for Gram + and there is little information about its activity in viruses.

- It is absorbed by intact skin which determines its persistence and its speed of action is intermediate.

- No allergenic or mutagenic effect has been demonstrated in short periods of use.

- Its activity is minimally affected by organic matter.

- The concentrations of usual use are between 0.3% and 2%.

- It is mainly indicated for clinical handwashing where it is used in 1% breads and in 0.5% liquid preparations.

Which layer most likely has a pressure, represented in units of GPa, within the range of 310 GPa to 150 GPa?outer core
inner core
lithosphere
oceanic crust

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Outer core because within the range of 310 to 150 gpa

Answer: A

Explanation: E2022

Which ecosystem is the most resistant to permanent change?

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Answer: Hello!

Explanation: Your answer is Diverse Organisms in a Large Region

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Suppose experiment was performed with the monosaccharide fructose instead of glucose. A beaker was filled with 30 ml of DNP + 15 mM fructose, and an everted intestinal sac was filled with Mammalian Ringers+ 10 mM fructose. Predict the final concentration of fructose inside the sac after 1 hr incubation at 37°C.

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Salmon fish hatcheries add a harmless perfume (morpholine) to a stream when they release young fish. When the fish mature, they attract them back to the home stream by using this chemical (in nature the fish smell the unique odors of soil and trees along the home stream). In effect, the hatchery biologist is usingA. the fish's inborn instincts to relocate its own stream.B. the fish's inborn instincts to relocate its own stream.C. an experiment based on the ability of fish to learn by trial and error.D. chemotropisms.