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3 years ago

How does the catalyst affect the energy curve ?

1 answer:

7 0

Answer: so the Effect of Catalysts on the Activation Energy Barrier. Catalysts provide a new reaction pathway in which a lower A.E. is offered. A catalyst increases the rate of a reaction by lowering the activation energy so that more reactant molecules collide with enough energy to surmount the smaller energy barrier.hope this helps

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The U.S. has sent unmanned spacecraft to _____ the planets in our solar system. A. all B. most C. some D. none of

Mandarinka [93]

<h3>Answer: A. all</h3>

Every planet in our solar system has been visited by an unmaned spacecraft sent by the United States. The launch years are given in this order

Venus (1962)
Mars (1964)
Mercury (1973)
Jupiter (1977)
Saturn (1977)
Uranus (1977)
Neptune (1977)
Pluto (2006)

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3 years ago

Read 2 more answers

It is thought that President Abraham Lincoln suffered from a genetic disorder known as Marfan syndrome. Which type of fiber is a

Katena32 [7]

Marfan syndrome is a rare disease of the connective tissue, which affects different structures, including skeleton, lungs, eyes, heart and blood vessels.

It is characterized by an unusual increase in limb length. It is believed to affect one in 5,000 people. Unlike other genetic problems, it does not negatively affect intelligence.

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4 years ago

The San Marcos salamander, Eurycea nana, is a light reddish-brown translucent salamander about 2-5 cm in length. E. Nanais found

Scrat [10]

Complete question:

The San Marcos salamander, Eurycea nana, is a light reddish-brown

translucent salamander about 2-5 cm in length. E. nana is found only in

Spring Lake and a portion of the San Marcos River.

Which human activity would most likely decrease the ability of the

salamanders to survive?

The addition of a new food source into the river that limits competition for

resources

Tourism that helps fund the educational programs related to river ecosystem

conservation

Public transportation that reduces the number of automobiles that contribute to

pollution runoff into the river

Increasing water consumption that decreases the flow of clean water from the

springs that feed the river

Answer:

Increasing water consumption that decreases the flow of clean water from the springs that feed the river

Explanation:

In this question we are required to state the human activity that may likely cause the reduction in the survival rate of the salamander.

the first three options in the question are not the answer to this question. this is because options 1,2,3 would have positive impacts on the Salamander. these positive impacts would increase the ability of the salamander to survive and not decrease it as the question says.

the correct answer is the last option. that is the 4th option. because it has to do with decreasing the amount of water that flows in to the Salamanders habitat by human activities. if humans increase water consumption, then the flow of clean water would reduce. This would then have a negative effect on the Salamander.

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3 years ago

The parent cell that enters meiosis is diploid, whereas the four daughter cells that result are haploid. Which statement correct

Rama09 [41]

Answer:

DNA content is halved in both meioses I and meiosis II. Ploidy level changes from diploid to haploid only in meiosis II.

Explanation:

In meiosis, one diploid cell produces four haploid cells. At the end of meiosis I, just like in mitosis, we will have two diploid daughter cells and then these two cells undergo cellular division again. In this secondary division, more precisely in the anaphase II, the centromere divides (this process does not happen in the meiosis I anaphase I, where homologous chromosomes move together to opposite poles) and sister chromatids move to opposite poles, leaving four individual cromatids following a cytoplasmatic division forming four new haploid cells.

6 0

4 years ago

What's used to detect the odor of a chemical?

wariber [46]

Lol i dunno the waft method

8 0

3 years ago