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MA_775_DIABLO [31]
3 years ago
12

What is the backbone of the dna structure composed of?

Biology
1 answer:
Reptile [31]3 years ago
3 0

Answer:

Each DNA strand within the double helix is a long, linear molecule made of smaller units called nucleotides that form a chain. The chemical backbones of the double helix are made up of sugar and phosphate molecules that are connected by chemical bonds, known as sugar-phosphate backbones.

Explanation:plz mark me as brainliest

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Non-native species like kudzu, zebra mussels, and nutria experience _____ outside their native area due to a lack of natural pre
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Answer:

exponential growth

Explanation:

The organisms that are not native of a particular environment but are exposed to live in that particular environment are invasive species. Usually invasive species do not prove useful to the new area and prove harmful to the environment as well. There are some species of organisms that have been accidently introduced to new environment and have been accidently proven to be beneficial. Zebra mussels, being the native to Black Sea when arrived to North America flourished there.

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The role of the excretory system is to rid the body of toxic waste products. Which of the following body systems also plays a di
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The respiratory system removes the waste carbon dioxide produced from aerobic respiration in the body.
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3 years ago
Refer to Animation: Countercurrent Multiplication. What would you predict to be the effect on an animal species of having longer
attashe74 [19]

Answer:

The correct answers is: I would predict that animals with longer loops of Henle would be able to concentrate their urine more than animals with shorter loops, and thus they would more likely survive in desserts and other dry areas.

Explanation:

The<em> Loop of Henle</em> is a tubule system that connects the proximal convoluted tubule to the distal convoluted tubule in a nephron, the functional and structural unit of the kidney. Its primary job is to establish a concentration gradient in the kidney's medulla by creating a high urea concentration deep in the medulla using a countercurrent multiplier system that uses electrolyte pumps. Through this mechanism, <u><em>water is reabsorbed to concentrate the urine and impede dehydration</em></u>.

The length of the loops of Henle is of great importance for the countercurrent multiplier system - <u>the longer they are, the more concentrated the urine can get</u>. Therefore, animals with longer loops can survive better in habitats where there is not much water around.

6 0
3 years ago
The sequence of ________________ in a DNA molecule determines the protein that will be produced. A) lipids B) nucleotides C) pro
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The sequence of B) nucleotides in a DNA molecule determines the protein that will be produced.
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Which two sense organs enable someone to run up a slope. Please state the explanation of each.
sukhopar [10]

Answer:

Which two sense organs enable someone to run up a slope. Please state the explanation of each.

Sense organs that enables someone to run up a slope include eyes and nose

Explanation:

Eyes enables one to see where to run while nose ensure breathing is intact when making the run

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3 years ago
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