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adoni [48]
3 years ago
14

What is the backbone of DNA composed of (choose all that apply)

Biology
2 answers:
Gelneren [198K]3 years ago
8 0

Answer:

nitrogen base

Explanation:

as it is nitrogen that is fixed to make protein bonds

VladimirAG [237]3 years ago
7 0

Answer:

Nitrogen base

Explanation:

The backbone of DNA is composed of the nitrogen bases.

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Based on what you know about the location of the earth in relation to the sun, why is this called the Goldilocks zone in other g
sladkih [1.3K]

Answer:

B

Explanation:

The distance of the Goldilocks zone ensures that water on the terrestrial planet is maintained in the liquid phase. This is because the distance from the star ensure it receives enough sunlight to keep the planet warm but not too hot that the water exists as vapor. Water in its liquid form is essential for maintaining life like here on earth.

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4 years ago
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Based on the phylogenetic tree below, which species are most closely related to the ancestral species?
Sindrei [870]

Answer:

cats i think

Explanation:

6 0
3 years ago
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An area of raised land in the middle of a river. Mountains and glacier in the distance. A geologist finds this ridge of sediment
Nadusha1986 [10]

A moraine is a landform feature which is formed by the glacier retreating. The ridge of sediments that geologists found has a feature namely moraine.

<h3>What is moraine?</h3>

The materials usually soil or rocks left behind by the glaciers are called moraine.

Just like rivers that carries all sorts of debris and silt and eventually builds up to form deltas, similarly glaciers moves all sorts of dirt and boulders that assembles to form moraines.

As the geologist found a ridge of sediments and notices a glacier in the distance so this is the moraine.

Thus, the correct answer is C.

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8 0
2 years ago
Unattached microbes are moved from the lungs to the epiglottis by the _______ effect.
lisov135 [29]

Answer:

The unattached microbes are moved from lungs to epiglottis by the <u>mucociliary escalator effect.</u>

Explanation:

Mucociliary escalator, also known as mucociliary clearance, is one of the major defense mechanisms that protects the lungs. It describes the self-cleaning mechanism of the bronchi which are present in the lungs. The effectiveness of this mechanism depends on the properties of the produced mucus and on the quality and number of the cilia present in the lining of the airway.

Therefore, the unattached microbes are moved from lungs to epiglottis by the <u>mucociliary escalator effect.</u>

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3 years ago
bomb investigators will search the entire crime scene in an attempt to find any detonating mechanism or other evidence. true or
Sunny_sXe [5.5K]
True. By the name itself, those are the things they are supposed to do.
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3 years ago
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