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miskamm [114]
3 years ago
14

A DNA molecule is shaped like a _____.

Biology
1 answer:
Nimfa-mama [501]3 years ago
5 0

Answer: D. Spiral staircase

Explanation: Hope that helped you a ton.

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name two major vessels that return oxygen-poor blood to the heart. What are the damages for each? Where do they terminate?
Serga [27]

Answer:

1. Head, neck, upper limb, thorax - super vena cava - top of the right atrium.

2. Lower limb - inferior vena cava - bottom of the right atrium.

Explanation:

The Heart pumps the oxygen-rich blood to the different parts of the body to Otake oxygen and nutrients to these organs and then takes the oxygen-poor blood returns from the body to the heart.

The two major vessels that return oxygen-poor blood to the heart are 1. superior vena cava (SVC) that drainages Head, neck, upper limb, thorax and terminate at top of the right atrium, and 2. inferior vena cava (IVC), Lower limb and terminate at bottom of the right atrium.

1. Head, neck, upper limb, thorax - super vena cava - top of the right atrium.

2. Lower limb - inferior vena cava - bottom of the right atrium.

4 0
4 years ago
Digestion breaks carbohydrates down into basic subunits (“building blocks”) called:
IRINA_888 [86]
The monomer of carbohydrates, monosaccharides. 
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4 years ago
Did the soil increase in the hubbard brook experiment
Sveta_85 [38]
It increased slightly if you measure precisely but if you round it did not
6 0
3 years ago
Nearly all eukaryotic cells contain a class of small, round organelles that contain oxidative enzymes. The enzymes break down or
Ivenika [448]

The correct answer is peroxisomes.  

Peroxisome refers to a small organelle found in the cytoplasm of various cells that comprises catalase (the reducing enzyme) and generally some oxidases.  

They are the minute vesicles and comprises the digestive enzymes used for dissociating toxic components in the cell. They are not similar to lysosomes on the basis of the kind of enzymes they withheld. The peroxisomes generally contain enzymes that need oxygen, that is, oxidative enzymes.  


4 0
4 years ago
Which is the function of the enzyme DNA polymerase during replication?
expeople1 [14]
Winds up the replicated DNA Strand
8 0
3 years ago
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