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spin [16.1K]
3 years ago
10

Explain why the structure of DNA is described as a double helix

Biology
1 answer:
Hatshy [7]3 years ago
8 0

Answer:

The double helix is the description of the structure of a DNA molecule. A DNA molecule consists of two strands that wind around each other like a spiral staircase. Each chain has a backbone in which a sugar (deoxyribose) and a phosphate group alternate.

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One serving of total cereal has 100 calories. John ate 3 servings for breakfast. How man calories from total cereal did John eat
Kamila [148]

Answer:

300 calories

Explanation:

100x3=300

8 0
3 years ago
Organisms that expend energy to regulate some or all of their internal conditions are known as?
seraphim [82]
<span>Organisms that expend energy to regulate some or all of their internal conditions are known as regulators. Regulators are organisms that can control their internal environment regardless of external environmental change. Regulators achieve this by homeostatic mechanisms and it requires a lot of energy. Examples of regulators are mammals and birds</span>




8 0
3 years ago
A mixture of gasses including oxygen nitrogen water and others that surrounds the earth is called the?
Soloha48 [4]

Answer:

The Atmosphere.

Explanation:

The atmosphere that surrounds Earth is made up of gases like nitrogen, carbon, oxygen, and water vapors.

3 0
2 years ago
According to the passage, which of the following best describes genetic engineering?
worty [1.4K]

Answer:

innovative

Explanation:

7 0
3 years ago
Please help asap!!! Will give 30 points and brainlist
grigory [225]

Answer:

Apple tree and grass are producers, mushroom and bacteria are decomposers, and everything else are consumers. The bear is herbivore I believe, the rabbit is as well to my understanding. The pig is omnivore and lion is carnivore.

Explanation:

Starting with producers, most plants are producers. They photosynthesize to make their own food (glucose). Decomposers break things down like dead animals. Carnivores eat only meat, which is what a lion does. It eats no plants. The pig is an omnivore, meaning that it eats both meat AND plants. Lastly, the bear and rabbit are herbivores meaning that they only eat plants. I always remember it as "HERBivore which sounds like HERBS which are plants" Hope this helps!

5 0
3 years ago
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