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Keith_Richards [23]
3 years ago
8

Oxygen and air are? Abiotic or biotic 

Biology
2 answers:
satela [25.4K]3 years ago
7 0

Answer:

Oxygen and air are both abiotic because they do not have carbon atoms, therefore they are non living substances.

Bond [772]3 years ago
5 0

oxygen and air are abiotic

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Make a list of the energy carriers involved in the Krebs cycle. Include their names before and after they accept the electrons.
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12

Explanation:

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3 years ago
What is one way that technology can lead to greater food insecurity?
Gnesinka [82]

Answer:To increase self-production of food and enhance its food security, Singapore has employed the use of technologies such as vertical farming and aquaponics in urban farming, nutrient recovery from food waste, biodegradable food packaging from durian rinds, natural preservatives, insect farming, microalgae and cultivated.

Many other herbicide resistant transgenic crops are currently under development (e.g., Roundup Ready alfalfa, Roundup Ready lettuce, Roundup Ready rice, Roundup Ready wheat and imidazolinone resistant wheat). ... Crops used for livestock and dairy feed will also be modified for improved utilization by animals.

If biofuels are produced from feedstocks that would have been used for food, then biofuels directly reduce potential food supplies. This reduction occurs even if feedstock price increases result in an expansion of supply because the expanded feedstock supply will typically reduce the supply of other food crops.

Increasing numbers of people often drive up demand for food, which typically results in additional use of arable land and water. This is especially true in the absence of adequate food production technology and integrated programs that simultaneously address community needs for food and reproductive health.

Explanation:

3 0
3 years ago
How is an agglutination reaction different from a precipitin reaction?
meriva

Cells clump together during a process called agglutination as a result of the accumulation of antigens and antibodies.

Immune complexes are created when soluble antigens are brought together by the appropriate antibody molecules, and they become visible when they are big enough to precipitate out of the solution.

  • The interaction between antibody molecules and the associated antigen molecules causes both agglutination and precipitation processes.
  • Agglutination, on the other hand, is the clumping of cells that occurs when one antibody binds several antigens at once.
  • Contrarily, precipitation occurs when soluble antigens and soluble antibodies interact to form a clear, insoluble substance known as the precipitate.
  • Agglutination takes place when a target antigen, also known as isoagglutinin, interacts with a corresponding antibody in the presence of an electrolyte at the right temperature and pH, leading to the development of apparent clumps or aggregates.
  • Precipitation happens when an electrolyte, an antigen, and a soluble antigen interact at the right temperature and pH to create cross-links or precipitates that sink to the bottom of the solution.

learn more about agglutination here: brainly.com/question/13022582

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Protozoans are free-living or parasitic eukaryotic organisms. They feed on dead and decay matter.

<h3>What are protozoans?</h3>

Protozoans are microorganisms. They are eukaryotic organisms, and they can be parasitic or free-living. They feed on dead and decay matter. Examples are amoeba, euglena, paramecium, etc.

Organisms that eat dead or decay matter are called decomposers. They clean the environment by eating the debris or decay, matter. Microorganisms like bacteria or protozoans are decomposers.

Thus, protozoans are decomposers as they feed on dead and decay matter.

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