C) Primary Producer. The producers are what make the food chain. Without them there would be no primary consumers. And without primary consumers there would be no secondary consumers.
Answer:
The DNA must be copied so there is a full set of DNA to pass on to each daughter cell.
Answer:
gradually pouring water in a soil
Explanation:
gradually pouring water in a soil allows the water to continue to flow through rather than waiting for the water below it to flow through before it can go.
Answer:
A person with sickle cell trait has one mutated copy of the hemoglobin gene, a person with sickle cell disease has two mutated copies.
Explanation:
Sickle cell disease also known as sickle cell anemia is caused by mutation of the beta chain of hemoglobin, the gene for which lies in 11th number chromosome. If a person possess only one mutated gene, then the disease is not expressed in the person. The person then only possess the trait for sickle cell anemia, that is, there is a chance of sickle cell disease in the offspring, but the sickle cell trait are usually asymptomatic or live like normal individual. While the person possessing two mutated gene is said to be suffering from sickle cell anemia and is found to possess S hemoglobin in the red blood cells which is abnormal hemoglobin without any ability to carry oxygen.
Tectonic plates often shift position by the force of liquid rock emerging from blow the earth's surface and then cooling to form hard rock. This most often occurs On the ocean floor.
When tectonic plates move, They move along the ocean floor, which is the crust, and It cause earthquakes and volcanoes and also caused Pangaea to break apart and become what it is now, The seven continents.
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