BIOLOGY HIGH SCHOOL

Which of the following statements concerning Francisella is false?A. An attenuated vaccine is used for high-risk individuals B. It resists phagocytosisC. Humans are its only known hostD. It is extremely infectiousE. It cannot be treated with penicillins or cephalosporins

Answers

Answer 1
Answer:

Answer:

Humans are its only known host

Explanation:

Humans are not the only known host for bacterium Francisella. For example, Francisella species such as Francisella tularensis uses many other organisms as its host.

Some of the non-human host organisms for Francisella tularensis are wild rabbits, most of the domestic and wild animals. The Francisella tularensis serve as causative agent of tularemia in these organisms which is a plague-like disease.

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Why did Mendel continue some of his experiments to the F₂ or F₃ generation? A) to obtain a larger number of offspring on which to base statistics B) to observe whether or not a recessive trait would reappear C) to observe whether or not the dominant trait would reappear D) to distinguish which alleles were segregating E) to be able to describe the frequency of recombination
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What does the zygote depend on for water and nutrients

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The zygote depends on the body of the gametophyte

Which structure contains the muscles that adjust the shape of the lens of the eye?

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I believe it is the ciliary body.

Answer: ciliary body

Explanation:

The exosphere is the layer of the atmosphere

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Yes you're correct. It is the outermost part of the atmosphere, artificial satellites are in that layer.

Answer:

where gas molecules can be exchanged between Earth's atmosphere and outer space.

Explanation:

The exosphere is the outermost layer of earths atmosphere. The exosphere goes from about 600 km to over 10,000 km above earth's surface. The exosphere is basically the transitional area between the atmosphere and space, so gas molecules end up getting exchanged.

a ------- is a type of research that involves observation and collecting data but does not include a control a. independent variable B. dependent variable c. investigation d. experimentation

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I think the correct answer is C. An investigation is a type of research that involves observation and collection of data but it does not include a control. In an investigation, all data and information that is related to the subject matter are collected it does not think of any factors that may affect the subject.

On steep slopes and mountains, ____ helps reduce erosion by creating level areas for crops.

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The answer is terracing.

Terracing is a type of landscaping characteristic for steep slopes and mountains. Graduated terraces are used to farm on this kind of terrain to reduce erosion. This way crops are planted on graduated level areas and not on steep terrain, and risk of surface runoff is reduced.

The amount of food consumed in one eating occasion is termed the

Answers

Answer: Serving or Portion Size

Explanation: If not Serving or Portion Size, there's probably a more detailed answer like the RACC, but i'm confident its Potion Size.
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