I think that having an extra chromosome 21 is tolerable to the point that someone with this condition can survive to maturity because it does not replicate.
There should only be a pair of chromosome 21. In the event that there are 3 chromosome 21, the person that has this extra chromosome has Down syndrome. Changes in the number and structure of this chromosome may result to delayed development, intellectual disability, but not immediate death.
Answer:
Gas Sulfur Dioxide and Ash
Explanation:
Gas sulphur dioxide and ash have a cooling effect on the surrounding environment after a volcanic eruption. The gas sulphur dioxide has special properties which allows it to reflect sunlight away from Earth. It also reflects other volcanic gases in the atmosphere, which ensures cooling at the site of the volcano.
This is called a food web, where many food chains are combined to form a more detailed version showing feeding relationships within an entire community
Carbon fixation is the process in which plants remove the carbon from atmospheric carbon dioxide and turn it into organic molecules like carbohydrates.
Because different type of plants are located in regions with different conditions they are different types of carbon fixation. Plants that live in arid regions need to conserve water, while plants that live in more moist conditions will not need to conserve water.
The carbon fixation in C3 plants is one-step process. An oxidation reaction occurs because of the enzyme RuBisCo. During the oxidation some of the energy used in photosynthesis is lost in a process known as photorespiration.
Hemoglobin is found in the red blood cells and are responsible for binding onto oxygen molecules. By binding to the oxygen, it can transport it to through out the body where it is needed.
