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mamaluj [8]
3 years ago
15

The steps of the dna ladder are made of _____?

Biology
2 answers:
Oxana [17]3 years ago
8 0
The basic steps of a DNA ladder are made up of nucleotids
Xelga [282]3 years ago
4 0

Answer: the correct answer is Paired Nitrogen Bases, took the lesson and got it right.

Explanation:

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Give an example of what would be membrane enclosed organelles in a eukaryotic cell.​
Gennadij [26K]

Answer:

Mitochondria, endoplasmic reticulum, golgi apparatus, or chloroplasts would all be an example.

Explanation:

Unlike prokaryotic cells, eukaryotic cells have a nucleus enclosed in a plasma membrane, as well as the mitochondrias, endoplasmic reticulums, golgi bodies or apparatuses, and chloroplasts.

3 0
2 years ago
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Any pollutant<br> released directly into the<br> environment
Lina20 [59]

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i think it is gas from cars

Explanation:

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1 year ago
Hugh is writing an article for an ecological magazine. Help him complete the sentences
stiv31 [10]

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answer 1: efficiency

answer 2: lower

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2 years ago
Х Flag A lake borders a housing subdivision and a golf course. Over time, algae in the lake begin to grow uncontrollably. Which
Mama L [17]

Answer:

B. runoff of nitrates from fertilizers applied to the golf course

Explanation:

Algal bloom is defined as the rapid growth of algae in freshwater or marine water. Algal bloom is green or yellowish in color that cover the top layer of water systems.

Algal bloom in the given case is caused by the excess of nutrients that is nitrates from fertilizers into waters and higher concentrations of nitrates causes uncontrollable growth of algae.

Algal blooms are harmful for environment as they may produce toxins and can block the sunlight from reaching the plants and animals in the water systems.

Hence, the correct answer is "B. runoff of nitrates from fertilizers applied to the golf course".

7 0
2 years ago
Why is the blood that drains into the hepatic portal circulation nutrient-rich
Lelechka [254]

Answer:

Explanation:

hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract and spleen to the liver. This blood are usually rich in nutrient because it contains extraction from digested materials or food substances in the gastrointestinal tract and it is processed in the liver for removal of toxins before the blood returns to the heart.

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