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nikitadnepr [17]
3 years ago
15

PLEASE HELP ME!!

Biology
1 answer:
wolverine [178]3 years ago
3 0

Answer:Have you ever wondered how scientists extract DNA from an organism? All living organisms have DNA, which is short for deoxyribonucleic acid; it is basically the blueprint for everything that happens inside an organism’s cells. Overall, DNA tells an organism how to develop and function, and is so important that this complex compound is found in virtually every one of its cells. In this activity you’ll make your own DNA extraction kit from household chemicals and use it to separate DNA from strawberries.

Explanation:

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Rainbow trout is non-native to the United States. However, this species is breeding with the native Gila trout. Scientists recen
geniusboy [140]

Answer: C. Preying

Explanation:

A non-native species is the species which is introduced to a new ecosystem. This species is introduced intentionally or accidentally to a new ecosystem by human beings or they may enter to the ecosystem by their own.

A non-native species can be invasive which means it can compete with the native species for resources like shelter, food and mates.

According to the given situation, the Gila trouts being the native species has been affected by the non-native Rainbow trout. This may be because of the fact that non-native species can be invasive for the native species. As the species is used as mate by the non-native species and they may become the prey of non-native species. This has resulted in the extinction of the species of Gila trouts.  

7 0
3 years ago
Cattle and sheep are exposed to lead and zinc when these poisons are in the _____.
postnew [5]
<span>D. grass they eat and water they drink</span>
6 0
3 years ago
Read 2 more answers
Give scenarios then give your interference and predictions.
sdas [7]

Answer:

interference

Explanation:

one of the best example of interference is demonstrated by the light reflected. from a flim of oil floating on water.

7 0
2 years ago
Which term describes cycles of hot and cold temperatures which expand and contract rock in combination with constant wind and wa
marishachu [46]

The correct answer is option C, that is, physical weathering.  

The weathering resulting due to the influences of changing temperatures on a rock, making the rock to split apart is known as physical weathering. There are two main kinds of physical weathering, that is, exfoliation and freeze-thaw.  

Physical weathering takes place mainly in the locations, where few plants grow and little formation of soil occurs, like hot deserts and mountain regions. It takes place either via repeated freezing and melting of water or via contraction and expansion of the rocks surface layer, which is baked by the sun.  


4 0
3 years ago
Read 2 more answers
Genetic alteration probably refers to altering what
puteri [66]
Genetic alteration refers to altering DNA sequence. Gene alteration forms genetically modified products that modifies the gene sequence. DNA consist of two long chains of nucleotides that are twisted and joined together in hydrogen bonds. These DNA cannot be altered in nature but gene expression can be altered.
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3 years ago
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