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cupoosta [38]
3 years ago
13

Typhoid fever is caused by bacteria in contaminated food or drink. In 1903, an outbreak of typhoid fever in Ithaca, New York, ki

lled almost 80 people. In addition, more than 1,000 Ithaca residents became sick with the disease. The population shares the public water source. Which type of limiting factor was involved in the typhoid outbreak that occurred in Ithaca?
density-independent factor

density-dependent factor

population-dependent factor

population-independent factor
Biology
2 answers:
Anvisha [2.4K]3 years ago
8 0

Answer:

The correct answer is "density-dependent factor"

Explanation:

Density-dependent factors are effects which impact varies depending on the size of the affected population. In this case, the outbreak of typhoid fever in Ithaca affected 1,000 residents because all of them share the public water source. This was a density-dependent factor because if the population of Ithaca were greater, probably all of them would not share the public water source and the impact of the outbreak would be not as large as it was.

melomori [17]3 years ago
5 0

Answer : Option B) Density -  dependent factor.

Explanation : Typhoid outbreak is dependent of the density as the people of the region are getting the water from the same source so, the density of the area is also an influencing factor in spreading the disease. The bacteria is also getting transmitted from one human to other human too.

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2 years ago
1. The diagram below represents a cell and several
Ray Of Light [21]

Explanation:

(3) active transport

The molecules would be moving against their concentration gradient from a region of low concentration to a region of high concentration.

While cells facilitate the transport of molecules via movement across the cell membrane, there many different mechanisms. These include passive diffusion, facilitated diffusion,  and passive transport. However some very large molecules require specialized type of active transport, which requires energy in the form of ATP, in order to move substances across the membrane against their concentration gradient.

Active transport is a mediated process that requires an energy input and the use of specialized membrane proteins to move against the concentration gradient. These proteins require energy in the form of adenosine triphosphate or ATP in order to facilitate necessary conformational changes to the large protein molecules to alter the spatial location of the molecule. For instance, with Na+, K+ pumps in cell membranes.

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8 0
3 years ago
Suppose that Zonosemata flies whose own wings had been clipped and reattached were attacked more frequently than untreated Zonos
Vesnalui [34]

Answer:

(c)-All results for the experimental groups involving wing surgery would be invalid.  

Explanation:

The study researcher shown in the above question noted that flies that underwent wing surgery were more attacked than those that received no wing treatment. However, the researcher does not show the study variables and, consequently, does not show any relationship between the variables and the research result. For this reason, we can state that based on this result, all results for experimental groups involving wing surgery would be invalid.

8 0
3 years ago
Why is the balance in each facet of health and well being important?
yawa3891 [41]

Answer:

Facet in health is well being its that a physical health and mental health.

Explanation:

Health is well being that important is to contributes the thought weight management, exercise and maintain the blood pressure.

  • Health is well being important process to quality of life and affects to the others, its a complex interaction to the quality of life.
  • Well being process is to maintain the dimensions of the well being:- emotional, physical, social, spiritual, environmental.
  • Emotional is to the ability to the love and achieve the sense of life, these process to ability to feel and express to the human emotions,it is a dynamic frequently with being emotional.
  • Physical is the regular checkup process to the disease checkup and provide the proper nutrients and quality of enjoyment.
  • Social  is to the includes to the respect of other and yourself to the build the community contributing interact to the global community demands and human personal role.
  • Spiritual is that perform the high level of faith and hope to the community commitment to the provide meaning and purpose sense.
  • Environmental is the effect to the physical environment to the human and maintaining the harm environment.
7 0
3 years ago
Why is the Calvin cycle considered a dark reaction?
kogti [31]
<span>Answer D hop you get it </span><span>Answer</span>
5 0
3 years ago
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