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mezya [45]
3 years ago
13

The main function of the circulatory system is to

Biology
1 answer:
KiRa [710]3 years ago
3 0

Answer:

Transport nutrients gas and waste. im pretty sure hope its right !

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Name and explain two types of natural science-give an example of each.​
Afina-wow [57]

Answer: Natural science can be divided into two main branches life science and physical science. Life science is alternatively known as biology, and physical science is subdivided into branches physics, chemistry, earth science, and astronomy.

5 0
3 years ago
In DNA replication in bacteria, the enzyme DNA polymerase III (abbreviated DNA pol III) adds nucleotides to a template strand of
earnstyle [38]

Answer:

In which image will adenine (A) be the next nucleotide to be added to the primer?

T, CG, GC, CG, A

**In the example above, DNA pol III would add an adenine nucleotide to the 3' end of the primer, where the template strand has thymine as the next available base. You can tell which end is the 3' end by the presence of a hydroxyl (-OH) group.

The structure of DNA polymerase III is such that it can only add new nucleotides to the 3' end of a primer or growing DNA strand (as shown here). This is because the phosphate group at the 5' end of the new strand and the 3' -OH group on the nucleoside triphosphate will not both fit in the active site of the polymerase.

Explanation:

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4 years ago
What do two different neutral isotopes of the same element have in common?
LenKa [72]
They have the same nuclear number (p.s. this is a chemistry question!) :)
3 0
3 years ago
Imagine you are a pathogen. You are trying to invade a human, and you find yourself moving through barriers. Describe the barrie
Artyom0805 [142]
The different barriers that you have to go through are the different organs of the immune system. These are the lymphoid organs, thymus, and bone marrow. The secondary wall that you have to go through are the lymphatic tissues which include the lymph nodes, adenoids, skin, liver, tonsils, spleen, and the lymph vessels. 

At all times, these systems work hand-in-hand so that the body can protect itself in order for it to survive
8 0
3 years ago
Read 2 more answers
What did Hershey and Chase's work show?
mestny [16]

Answer: A.

Explanation:

The secondary growth of a plant happens in the vascular cambium. When the vascular cambium produces more tissues, it makes the stems thicker over time.

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