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Serhud [2]
3 years ago
6

Which elements makes up most of earth’s atmosphere

Biology
2 answers:
erik [133]3 years ago
7 0

Answer:

Nitrogen is the element which is present in the atmosphere about 78 % by volume.

Explanation:

Nitrogen is present in the atmosphere in very high concentration about 78 % by volume. This nitrogen is very important for the growth and development of plants on the earth surface. This nitrogen comes to the earth surface through rainfall which is useful by the plants after conversion of nitrogen molecule into nitrates by nitrifying bacteria.

denis23 [38]3 years ago
4 0

Answer:

Which elements makes up most of earth’s atmosphere?

The atmosphere is made up of different elements but the most abundance is Nitrogen with 78% while oxygen and others carries the rest percentage including some inert gases

Explanation:

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At the cellular level, membranes; for the whole organism, the skin is what
Katen [24]

Answer:

Reproduction.

Explanation:

At the cellular level indicate that the living organisms are made up of the smallest building blocks called cell. It refer to unicellular organisms i.e organism with one cell.

At the cellular level, membranes; for the whole organism, the skin is Reproduction because a single parent cell divides into two cells (offsprings), two divides into four cells and so on. It is called cell division and cell reproduction because a single cell skin divides to produce many cells.

4 0
3 years ago
Which of following refers to the process that facilitates plant communities gradually changing over a period of time in order to
Reil [10]

Answer:

The correct option is B

<u> Succession</u> refers to the process that facilitates plant communities gradually changing over a period of time in order to respond to their environment.

Explanation:

Succession can be described as changes that occur in an ecosystem in response to the changes in the environment or any other disturbances.

Succession can be of two types. 1. Primary succession 2.Secondary succession

Primary succession occurs on lands where there was no life before. With time, plants start to grow here and a community is developed.

Secondary succession occurs on lands that have been destroyed due to any disturbances like a flood or a fire. Over time, new plants start to grow on this land and a community is developed.    

4 0
3 years ago
The lower the percent of energy required for a machine to perform work, the more energy efficient it is. Please select the best
Phoenix [80]
Hello!

The correct answer is: True.

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5 0
3 years ago
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Which three statements correctly describe the endoplasmic reticulum?
Sunny_sXe [5.5K]

I have searched everywhere, but I have not found the proposals of the question, but I will explain to you what is the endoplasmic reticulum so that you can answer it.

The endoplasmic reticulum is a eukaryotic organelle located in the cytoplasm.

The endoplasmic reticulum is a network of membrane tubules (often interconnected) scattered throughout the cytoplasm of eukaryotic cells. Its membrane, which alone represents more than half of the cellular membrane system, is in contact with the nuclear envelope.

The endoplasmic reticulum can be:

Granular (or rough) (RER) that is to say associated with ribosomes.

Smooth (SER).

The granular endoplasmic reticulum is the place of synthesis (in the associated ribosomes) of the proteins secreted outside the cell and of the proteins and lipids constituting the membranes of the cellular organelles. Golgi, lysosomes, mitochondria, nucleus, ribosomes, vesicles ...). It participates in the correct folding of the proteins that have just been synthesized.

The smooth endoplasmic reticulum participates in cellular metabolism, synthesizing lipids and storing calcium.

5 0
3 years ago
The stalk of a leaf is known as the ________.<br><br> petiole<br> lamina<br> stipule<br> rachis
jasenka [17]

Answer:

Petiole

Explanation:

The petiole is the part of the leaf that attaches the leaf to the main stem of the plant. Depending on the leaf structure of the plant, some leaves may be devoid of a petiole, and be regarded as apetiolate.

3 0
3 years ago
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