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REY [17]
3 years ago
10

What hypothesis did Miller-Urey test in their experiment?

Biology
2 answers:
Irina18 [472]3 years ago
7 0

Answer: The Miller - Urey experiment is an experiment that was conducted by Stanley Miller and Harold Urey last 1950's. The hypothesis that they had tested and demonstrated was that several organic compounds could be formed by simulating the conditions of Earth's atmosphere.The Miller-Urey experiment provided the first evidence that organic molecules needed for life could be formed from inorganic components. Some scientists support the RNA world hypothesis, which suggests that the first life was self-replicating RNA.

Explanation:

coldgirl [10]3 years ago
4 0
Organic molecules can form in a reducing atmosphere. Good luck.
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You cross purple-flowered and white-flowered pea plants, and all offspring are purple. how come? select one:
Vaselesa [24]
To solve this problem on genetic dominance, we will need a punnet square.

Let's let P represent purple-flowered and p represent white-flowered.

We have one purple flowered plant with the alleles PP, and we have one white flowered plant with the alleles pp. Using a punnet square, we can determine the alleles of the offspring.

       <u>P</u>     <u>P</u>
p|    Pp   Pp

p |   Pp   Pp

As we can tell from our punnet square, all of our offspring will have purple flowers. This is because the purple-flower allele is dominant and the white-flowered allele is recessive.

Since each flower has a dominant and recessive allele, they are heterozygous.

Therefore, the solution to this problem is D.
3 0
3 years ago
Type your answer in the box.
jeyben [28]
The word below Is the answer
8 0
3 years ago
Someone please help! I will mark you as brainlist!!o
eduard

Answer:

cycadophyte

Explanation:

cycadophyte

6 0
2 years ago
Read 2 more answers
Differential survival and reproduction is best described by which term? natural selection creationism inheritance of acquired ch
Sophie [7]
I believe it is natural selection. Natural selection is when over a period of time, traits that are formed to help the organism survive, are passed to the next generation. For example, if there were two types of rabbits. One had black fur and the other was white. They both lived in the artic. The black furred rabbits are mostly eaten by predators because their black fur is easily seen against the ice and snow. Over a period of time, the black furred rabbit would die out. The next generation would mostly have white fur to help them survive.
5 0
3 years ago
Which element's cycle depends on kinds of bacteria to keep the element available to other organisms?
Whitepunk [10]
I believe it is the Nitrogen cycle although all of the cycles use bacteria. Only nitrogen requires nitrogen fixing bacteria to keep the cycle going.
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