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rjkz [21]
3 years ago
13

Veins returning to the heart can close to prevent the backflow of blood. Which component in the veins contributes to this proces

s?
Biology
1 answer:
Sedbober [7]3 years ago
3 0
The valves are an aid to help prevent backflip and keep circulation a one-way system
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If a fox and an eagle eat some of the same organisms in an ecosystem, the relationship between the fox and the eagle could be cl
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If a fox and an eagle eat some of the same organisms in an ecosystem, the relationship between the fox and the eagle could be classified as competition. Competition both within and between species is an important topic in ecology, especially community ecology. It is one of many interacting biotic and abiotic factors that affect community structure. It is a major affecting the availability of resources in an ecosystem is the density of individuals, or the number of organisms living in a certain area.
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What is an effect of complement activation?
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are there other tests that could be used to determine if cyclohexanol is present in your product? give at least one test with so
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One of the many tests that may be used to identify the presence of cyclohexanol in a product is that of the Lucas test.

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3 0
3 years ago
An outbreak occurs where the first case is detected on October 15th, the last case is detected on October 27th, and the peak is
aksik [14]

Answer:

12-14 october

Explanation:

The probable period of exposure is calculated as follows:

  1. Know  the range of the incubation period
  2. Start counting back from the days of the first case by subtracting the first number of incubation period range
  3. Count back the days from the last case by subtracting the last number of incubation period range.
  4. This will give a range which will be the period of exposure.

From the question,

  • Incubation period range 1-15
  • Date of first case = october 15
  • Therefore, first date of exposure = 15 -1 = 14
  • Date of last case = 22
  • Therefore, last date of exposure = 27 - 15 = 12
  • Thus, the range is 12-14 october which is the probable period of exposure.
7 0
3 years ago
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