I think most of the environmental pressure will come from pollution, and a lack of space. With so many people around, there''s going to be a lot of vehicle use, and things such as littering. We're going to have to change and start cleaning up after ourselves and limit the use of gas.
The pressure in the past will be: raising temperature and flooding, more Co2 in the atmosphere.
We might for example evolve to better extract the oxygen from the atmosphere and be better resistant to heat.
Answer: I believe that the environmental pressures that exist now and that may be shaping the human species are the use of land, the extraction of resources, greenhouse emissions and water use. This are being used by use more and more as we start overpopulating the earth.
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Answer:
D) over 90
Explanation:
As we know, hemoglobin is the protein found in red blood cells that is in charge of oxygen transportation, and the relation between the percentage of oxygen that binds to hemoglobin and the partial pressure of oxygen in the blood can be represented through the oxygen - hemoglobin dissociation curve, as shown in the attached image.
As we can see in the image, the curve has a sigmoid shape, and this is due to the allosteric interactions between the subunits of the hemoglobin, which change their conformation with each oxygen molecule that binds in order to increase even more the oxgen affinity. This curve is constantly shifting to the right and to the left depending on the conditions of the blood, like temperature, pH, partial pressure of carbon dioxide and the concentration of diphosphoglycerate (DPG).
When the PO2 is around 70 mmHg, as we can see in the curve, the hemoglobin is saturated around 90% or more, reaching a plateu in the curve where the oxygen is not binding as fast anymore, because there are almost no more free binding sites left in the hemoglobin molecule.
It is the recessive trait that is visible in the F2 generation, but not the F1 generation of the Mendel Crosses.
In a recessive trait, the organism has two recessive allele or similar form of gene.
In the F1 generation all the off springs are heterogeneous with different allele but in the F2 generation the recessive allele comes from the alleles passed on by the parents (off springs of the F1 generation , which have recessive allele)
Correct answer: A). Decomposition
Decomposers are the organisms that are known to break down the dead and decayed animals and plants, and the process is known as decomposition. They are also known to help in the breakdown of a waste of other organism.
They are considered important for the ecosystem, as if they were not there in the ecosystem then the plant would not be able to get essential nutrients that are necessary for their growth. Because it is the decomposers who help in the recycling of carbon and the nitrogen cycle.
Example: bacteria, fungi
