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IRINA_888 [86]
3 years ago
13

These compounds react with sunlight and destroy .

Biology
1 answer:
emmasim [6.3K]3 years ago
7 0

Answer:

The natural level of ozone in the stratosphere is a result of a balance between sunlight that creates ozone and chemical reactions that destroy it.

Explanation:

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The megasporangium in a pine cone is surrounded by an integument with a small opening called the?
zhannawk [14.2K]

The megasporangium in a pine cone is surrounded by an integument with a small opening called the micropyle.

Integuments in flowers are the maternal tissues or having a maternal beginning, as they originate from the ovular tissue or chalazal tissue (part of the lady reproductive gadget of a flower). A time period integument merely refers to the protecting layer. In terms of botany, an integument is a layer encircling the ovule.

A mature ovule consists of a meal tissue included by means of one or destiny seed coats, called integuments. A small establishing (the micropyle) within the integuments permits the pollen tube to enter and discharge its sperm nuclei into the embryo sac, a large oval cellular in which fertilization and improvement arise.

Learn more about integument here: brainly.com/question/2801375

#SPJ4

3 0
1 year ago
To measure the population of lake trout in a 250-hectare lake, 400 individual trout were netted and marked with a fin clip, then
kenny6666 [7]

Answer:

Estimated size is 1600

Explanation:

Given data:

Size of lake is 250 hectares

Total number of trout who netted is 400

Total number of trout in next week is 200

Total number of trout having fin clip 50

estimation population size is estimated by mark rupture as follow

Estimated population size = \frac{(marked\ initally \times total\ recaptured)}{mark\ recaptured}

Estimated size= \frac{400\times 200)}{50}

Estimated size is 1600

4 0
3 years ago
A fossil mold that reflects the shape and surface markings of an organism is created when _____.
Lady bird [3.3K]

Correct answer: D). The organism is buried in sediment and then dissolved by underground water

Mold is a copy of an organism, it is formed like the first layer of sediments harden and forms a mold. Then after that new layer of sediment fills and become hardens.

The fossil is left behind in sediment, which removes the remains of an organism from its surrounding material. The groundwater along with its mineral content dissolves the organic matter to form the fossil.


3 0
3 years ago
Read 2 more answers
how would a change in the sequence of nucleotides in a DNA molecule affect the mRNA transcribed from the DNA molecule?
oksano4ka [1.4K]
There are several types of changes that could happen. If one of the letters of DNA were to be changed to a differnt letter, this might result in a differnt amino acid being put into the protein being synthesized. Or, changing a single letter could tell the protein to stop being made (a stop codon is formed) this would make a much smaller version of the protein. If a letter is either inserted or deleted this is called a "frame shift" mutation and this totally destroyes the message. A sudden change in the sequence of DNA could also "silence" the gene turning off transcription so that no mRNA would even be made. Or, it could enhance transcription increasing the ammount of mRNA. There are many many ways that a DNA mutation can affect mRNA, do you need anything more specific?<span>Its very simple,mRNA is kinda messenger which takes information from genetic material(DNA) which will later get translated to functional protein.The information in genetic material is in the shape of sequence of nucleotides pairs.there are four kinda nucleotides 1.adenine,2.guanine3.cytosine4.thiamine.... nucleotides lare kinda codes which get imprinted on mRNA , where thiamine is exception coz it get transcribed to uracil.
,since mRNA does contain thiamine but it has a replacement known as uracil.So its very simple if there will be any change in nucleotide the information given to mRNA will also change .So u see sudden change in nucleotides will mean that information send to mRNA will get changed.other things getting affected would be protein.</span><span>.As mRNA will later translate this information to make proteins from amino acids</span>
8 0
3 years ago
Read 2 more answers
What happens to phosphorus when animals die?​
nikitadnepr [17]

Answer:

phosphates will return to the soils or oceans again during decay

Hope I helped :D

4 0
2 years ago
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