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3 years ago

Astronauts and scientists conduct research studies aboard the International Space Station in a satellite that was built by_____.

2 answers:

5 0

I think the correct answer from the choices listed above is option D. <span>Astronauts and scientists conduct research studies aboard the International Space Station in a satellite that was built by sixteen nations. Hope this answers the question. Have a nice day.</span>

Iteru [2.4K]3 years ago

3 0

D. sixteen nations

The International Space Station (ISS) is the biggest space station ever constructed, the largest structure ever congregated in space, and one of the most complicated global experimental projects in history.

The United States, with the help of NASA, commences the ISS project, by involving 15 other nations in construction and operating several parts of the station. The nations involved are Russia, Canada, Japan, Brazil, and 11 member countries of ESA (Belgium, The Netherlands, Norway, Spain, Sweden, Denmark, France, Germany, Italy, Switzerland, and the United Kingdom.

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Imagine that zika virus has a 1% incidence in the population. A test for the virus has a 3% false positive rate and no false neg

Darina [25.2K]

Answer:

The answer is 97%.

Explanation:

The zika virus' 1% incidence rate in the population has no effect over the probability of the patient being infected or not. If the test has a 3% false positive rate that means that if it is positive, the results have a 97% chance of being true. Therefore the chance that the person who took the test and had a positive result being actually infected is 97%.

I hope this answer helps.

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3 years ago

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It is important for ______ to participate in conservation efforts.

pickupchik [31]

The answer is E because all of the i I’ve is important to participate in conservation efforts

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3 years ago

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The variance in a gene, which occur on a fixed spot on a chromosome is called a/an

Inga [223]

Answer:

allele

Explanation:

a spot on chromosome is an allele

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3 years ago

2. In the SN1 mechanism, the second step is attack of the nucleophile, so increasing the nucleophile concentration should speed

zysi [14]

Answer:

The rate of reaction depends on the rate determining step of a nonelementary reaction

Explanation:

A non elementary reaction is a reaction that proceeds in a sequence of steps. One of the steps is usually the slowest step in the reaction sequence. This slowest step is called the rate determining step. In an SN1 reaction, the rate determining step is the formation of the carbocation, the concentration of the carbocation affects the rate of reaction because it is involved in the rate determining step. The attack of the nucleophile is a fast step and does not affect the rate of reaction.

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3 years ago

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Which statement is not correct about the antibodies?

Marrrta [24]

Answer:

b. They are produced by memory B cells

Explanation:

The rapid cell division in activated B cells is followed by the differentiation of daughter cells into the plasma cells. The plasma cells are the precursor for antibodies and memory B cells. The antibodies kill the antigens while memory B cells are long-lived cells.

Hence, antibodies are not produced by memory B cells but by plasma cells.

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3 years ago