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miskamm [114]
3 years ago
9

Explain the difference between blood types AB and O.

Biology
1 answer:
blsea [12.9K]3 years ago
4 0

Answer:

The difference between AB and O blood types has to do with the antigens you have or don’t have on your red blood cells.

AB blood has both A and B antigens on its red blood cells and

O blood has neither A nor B antigens on its red blood cells

Explanation:

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Beyond their role in energy transfer, what other benefit do microorganisms that act as producers provide for ecosystems?
insens350 [35]

Answer:

The microorganisms present metabolic wastes that serve as the primary source of food for other living things.

Bacteria that live free in the soil or in symbiosis with plants are essential to fix nitrogen, both nitrates and ammonia. These bacteria take nitrogen directly from the air, originating compounds that can be incorporated into the composition of the soil or living beings.

This property is restricted only to prokaryotes and is widely distributed among different groups of bacteria and some archaeobacteria. It is a process that consumes a lot of energy that occurs with the mediation of the enzyme nitrogenase, which the rest of the living organisms that cannot do or comply with this process is because they lack said enzyme.

Dunaliella is a genus of microscopic algae of the Chlorophyceae class and of the order Volvocales. All are unicellular, although with very varied morphologies.

Morphologically, its main characteristic is that they lack a rigid polysaccharide cell wall.

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Explanation:

By nitrogen fixation is meant the combination of molecular nitrogen or dinitrogen with oxygen or hydrogen to give oxides or ammonia that can be incorporated into the biosphere. Molecular nitrogen, which is the majority component of the atmosphere, is inert and not directly usable by most living things. Nitrogen fixation can occur abiotic (without the intervention of living beings) or by the action of microorganisms (biological nitrogen fixation). Fixation in general involves the incorporation into the biosphere of a significant amount of nitrogen, which globally can reach about 250 million tons per year, of which 150 correspond to biological fixation.

6 0
3 years ago
What is the most likely cause of the change in population size in year 6 shown in the graph below?
ElenaW [278]

Answer:

B

Explanation:

Isk

3 0
3 years ago
Chemical and physical weathering both involve direct contact of the atmosphere with rocks, soils, and minerals.
Anastaziya [24]

Answer:

False

Explanation:

It does not have to touch it in order to have a effect on it.

7 0
3 years ago
5. When a stem cell divides it can either become more _______ or ________.
mr Goodwill [35]

Answer:

When a stem cell divides, each new cell has the potential to either remain a stem cell or become another type of cell with a more specialized function, such as a muscle cell, a red blood cell or a brain cell. There are three characteristics of all stem cells.

Explanation:

4 0
3 years ago
Which terms are listed in the correct order from largest to smallest? *
nikitadnepr [17]
C, because DNA is the smallest one
5 0
3 years ago
Read 2 more answers
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