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Andreas93 [3]
4 years ago
13

What are some sources of oxygen

Biology
2 answers:
Nastasia [14]4 years ago
7 0
Some sources of oxygen is through plants and their way to create food through photosynthesis and the decomposition of dead plant and animal material.
Tatiana [17]4 years ago
4 0
Trees, plants, oxygen tank
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Describe the importance of biomes such as forests, freshwater, and marine biomes? How have human actions affected these biomes?
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Forest biome:  It gives us medicinal plants, woods for commercial purpose. Forests provides us rubber and fibers that is very important for the industries for making various products. They also contribute to perform ecological  functions such as carbon storage, nutrient cycling, water and air purification. It also provides habitat to the wildlife.

Freshwater biome:  We use fresh water for drinking water, irrigation, sanitation systems, and in industrial factories. Water used from groundwater, rivers and lakes is regained by rain and snowfall.

Marine biome:  It serves huge amount of oxygen into the environment and absorbs the atmospheric carbon dioxide.

As a result of the activity of human there is a significant decrease in the number of trees. The products now used are synthetically made which were made up of natural fibers previously. The water source such as rivers, lakes, and ponds are polluted due to which many water borne diseases are increasing day by day. The accumulation of waste which are found in marine biome are reducing the number of flora present inside marine ecosystem.

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3 years ago
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Which activity occurs in the process of replication?
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The process of DNA duplication is called DNA replication. Replication follows several steps that involve multiple proteins called replication enzymes and RNA. In eukaryotic cells, such as animal cells and plant cells, DNA replication occurs in the S phase of interphase during the cell cycle.

4 0
3 years ago
What can be related to heat flow and movement of molten rock within the interior of the earth??
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<span> shifts in the Earth's crust, earthquakes</span>
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The subclavian artery is renamed the artery after it passes over the lateral border of the first rib.
zhuklara [117]

The subclavian artery is renamed as axillary artery after it passes over the lateral border of the first rib.

<h3>What is axillary artery?</h3>
  • The subclavian artery continues as the axillary artery at the lateral aspect of the first rib, serving as the primary artery of the upper extremity.
  • The artery has three sections based on its proximity to the pectoralis minor muscle, each of which has six major branches.
  • A sizable muscle vessel that passes through the axilla is called the axillary artery.
  • It is in charge of delivering oxygen-rich blood to the upper limb as well as to a portion of the scapula's and upper lateral thorax's musculocutaneous system.
  • As a result, two primary arteries rather than one supplied the upper limb's axillary region in particular with arterial blood on both sides.
  • These two arteries may be lingering branches of the capillary plexus of the growing limb buds because they came from the first portion of the axillary artery.

Learn more about axillary artery here:

brainly.com/question/8424000

#SPJ4

4 0
2 years ago
A. At the end of replication, two ____ copies of DNA exist.
Andrew [12]
The answer to your question is two DNA molecules. 2 both copies consist of one new chain and one old chain nucleotides. half of the chain is part of the original DNA molecule the other brand new molecule
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