BIOLOGY HIGH SCHOOL

What is some conlusive evidence that organisms of two different species share a common ancestor?

Answers

Answer 1
Answer: Well, according to the theory of evolution, the reason that organisms of two different species would share a common ancestor is that way back before evolution really took place, there were species that were all grouped together. After time, these species needed to evolve in order to adapt to the way the environments were changing. For example, dogs and wolves are not the same species, but are related and share a common ancestor, causing them to look alike.

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The experiment that produces the most reliable results is the one in which the a. hypothesis is proved
b.first hypothesis was changed
c.results are repeatable
d.latest equipment was used

Answers

I think for the experiment to be reliable, it must be repeated certain amount of times, roughly as many as you can, it doesnt matter whether the hypothesis is right or wrong. If the experiment is repeatedly reliable, the hypothesis might be correct.

Describe the DNA transcription process, which involves the transfer of the DNA genetic code onto an mRNA molecule.

Answers

DNA is present within the nucleus of the cells and it is responsible for the production of various proteins and enzymes to keep the cellular activity going on. However, it cannot directly do so and seeks help of the messenger RNA molecules. DNA transcription is a process that involves transfer of the DNA code from the DNA to the mRNA molecule for the production of proteins.
During the transcription, the DNA is used to  produce proteins. But DNA is not directly transformed into protein
In order to do so, it must first copied to RNA to ensure the genetic information from the DNA doesn't become tainted

hope this helps

Freshwater can be renewed, but environmentalists consider it nonrenewable. Why is there a contradiction in classification? A.)Water is recycled through the use of irrigation, bathing, and everyday use.
B.)Water is easily polluted or depleted before it can be replaced.
C.)Water evaporates and condenses, and then precipitation returns it to the lakes.
D.)Water is highly affected by global warming, and is quickly evaporating.

Answers

The most logical explanation for the contradiction in classification results in the idea that water is both easily polluted, and can be depleted at a faster rate than would be able to be replaced. This provides a situation where water can become a non-renewable resource if depleted too quickly.

B. Water is easily polluted or depleted before it can be replaced.

Halophiles are a type of (1)_____ and are considered (2) _____lovers.1)eubacteria, archaea, or virus
2)virus, salt, or heat

Answers

Halophiles are atype of archaea and are considered salt lovers. Halophile organisms thrive in extreme environments thus they are also called extremophile organisms. They can be found in places with high salt content.

Halophiles are a type of archaea and Halophiles are considered salt lovers.

  1. Halophiles are a type of archaea.
  2. Halophiles are considered salt lovers.

Halophiles are microorganisms that thrive in environments with high concentrations of salt, such as salt flats, salt mines, and saline soils.

They have adapted to survive and even flourish in these extreme environments, which would be inhospitable to many other organisms. The term "halophile" is derived from the Greek word "halos," meaning salt, and "philia," meaning love or attraction.

These organisms are classified within the domain Archaea, a group of single-celled microorganisms that are distinct from both eubacteria and eukaryotes.

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What is the probability that a person who is older than 35 years has a hemoglobin level between 9 and 11? Select one of the options below as your answer:



A.
0.257




B.
0.284




C.
0.312




D.
0.356




E.
0.548

Answers

1. The probability that a person who is older than 35 years has a hemoglobin level between 9 and 11 is 0.284.

2. The probability that a person who is older than 35 years has a hemoglobin level of 9 and above is 0.531.

What is probability?

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true. The probability of an event is a number between 0 and 1, where, roughly speaking, 0 indicates impossibility of the event and 1 indicates certainty.

Given

Let the number of person who is older than 35 years has a hemoglobin level between 9 and 11 be x.

From the given table it is clear that the total number of person who is older than 35 years is 162.

76+x+40 = 162

116+x = 162

x = 46

The number of person who is older than 35 years has a hemoglobin level between 9 and 11 is 46.

1.The probability that a person who is older than 35 years has a hemoglobin level between 9 and 11 is

P = 46/162 = 0.62

The probability that a person who is older than 35 years has a hemoglobin level between 9 and 11 is 0.284.

Person who is older than 35 years has a hemoglobin level  of 9 and above is 40+46 = 86

The probability that a person who is older than 35 years has a hemoglobin level of 9 and above is

P = 82/162 = 0.531

The probability that a person who is older than 35 years has a hemoglobin level of 9 and above is 0.531.

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During the prewriting stage the writer does all of the following except A. focuses on what to say to the audience. B. determines who is the audience. C. organizes the ideas for the audience. D. determines how he/she is going to speak to the audience.

Answers

I believe C would be the answer...it makes more sense, since C is more of the drafting part of the paper. You have to know who your main audience is going to be and how you're going to talk to them

Idk for sure, but I think it's C
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