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4 years ago

The Earth's atmosphere is divided into five layers. In which layer does all life exist?

Biology

1 answer:

damaskus [11]4 years ago

3 0

Explanation:

The atmosphere is divided into five layers. It is thickest near the surface and thins out with height until it eventually merges with space. 1) The troposphere is the first layer above the surface and contains 70 to 80 per cent of the Earth's atmosphere. Weather occurs in this layer.

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Which features form near convergent oceanic plates? Select the two correct answers.

Zepler [3.9K]

trench

volcanic arc

Features that will form near convergent oceanic plate boundary is a trench & volcanic arc

Explanation:

A trench is formed because at the boundary where the two tectonic plates are colliding, there so much stress such that the two plates warp downwards and form a depression all along the boundary. This is a mid-ocean trench. This is as opposed to a mid-ocean ridge that forms at a divergent boundary.

A volcanic arc – a chain of volcanic mountains along the convergent boundary –is formed because the enormous stress along the boundary causes the formation of fissures. The subdued plate, as it dives into the mantle, melts into magma that rises through these fissures. At the surface, the magma erupts violently into a volcanic mountain. Because there are many fissures along the boundary, several volcanic mountain chains will form along the boundary.

Learn More:

For more on geographical features along tectonic plate boundaries check out;

brainly.com/question/11430739

brainly.com/question/11821198

#LearnWithBrainly

7 0

3 years ago

You are uncertain whether you have successfully intubated a newborn. Which of the following is an indication that the endotrache

ikadub [295]

<h2> Carbon dioxide detectors indicate expired $CO_{2}$ </h2>

Explanation:

Capnography detects the expired carbon dioxide ( $CO_{2}$ ) level, which intently approximates intra-alveolar $CO_{2}$ . Capnography detects both wind current and the fractional weight of $CO_{2}$ in alveoli, which is helpful for assessing OSAS, rest hypoventilation, and a hidden pneumonic illness.
An infrared analyzer over the nose and mouth recognizes $CO_{2}$ in the expanded air, which subjectively quantifies the wind current.
Subjective indicators are fundamentally used to at first affirm appropriate situation of an endotracheal tube by exhibiting the nearness (hinting effective position in the trachea) or need (esophageal arrangement) of breathed out $CO_{2}$ .
In spite of the fact that $CO_{2}$ identifiers at last measure breathed out $CO_{2}$ , there are structure contrasts between certain units. Finders can be partitioned into quantitative and subjective sorts. Subjective locators just show the nearness or nonattendance of $CO_{2}$ . The most fundamental unit of this sort is the colorimetric locator creating a shading change as the gas moves through a litmus paper film in the aviation route circuit.

5 0

4 years ago

Which type of cells form the lining of the small intestine.

Tanya [424]

Answer:

polarized cells

Explanation:

The intestinal epithelium is lined with a single layer of polarized cells,

6 0

3 years ago

Arrange the following in the proper sequence in which they occur during a single PCR cycle.

Tju [1.3M]

Answer:

C. 3, 2, 1

Explanation:

During a single PCR cycle, the very first step is the heat separation of the double stranded DNA. Primer binds only single stranded DNA/RNA because it has complimentary bases which match single strand of DNA/RNA that is why it is necessary to unwind both the strands of DNA by providing temperature.

As soon as the DNA strands have separated by increasing the temperature to ~ 95 °C, in the next step the primer binds the portion of DNA which is complimentary to the bases of the primer. In order for primer to bind DNA, the temperature is lowered to ~ 72 °C and the process is called as annealing.

Once primer has bound to the DNA, the next step is polymerization i.e. nucleotides which are the monomer units of DNA are added one by one with the help of enzyme named as Taq polymerase. This is how the strand extends ahead of primer and exact copies of the given DNA are produced.

Note: PCR may be considered as in vitro DNA synthesis or replication.

5 0

3 years ago

List the three classes of consumers based on what they eat.

oksano4ka [1.4K]

Answer:

carnivore, omnivores, vegetarians

6 0

3 years ago