The chemical energy stored in food is released by cells through the process of respiration. This process has four steps, and mainly produces ATP as the energy-carrying molecule that can be used by cells in their metabolic activities.
Scientists have sequenced the whole human genome; this means that the normal DNA sequence for the whole of human body is known. Thus, it is now possible to known the specific abnormalities that occur in disease conditions.
This means that people that are at risk of certain diseases can be tested by taking DNA sample from them and then comparing the sequence of their DNA with that of the diseased DNA sequence.
For instance, pregnant women that are at risk of giving birth to children with down syndrome can be tested in the hospital to find out if the baby inside them have the disorder. This is done by collecting some amniotic fluid from their body, the fluid is then analyse for DNA sequence. If the fetus has down syndrome the pregnancy will be aborted.<span />
It's D, all things necessary for life on the earth are found in the sphere.
The correct answer is option A.
The immune system safeguards the body against the probable harmful materials by reacting and determining the antigens. Antigens are the components situated on the surface of viruses, cells, bacteria, or fungi. The immune system destructs and determines, or attempts to destroy the components, which comprise antigens.
Nonspecific or innate immunity is the defense system with which an individual is born. It safeguards the person against all the antigens. Innate immunity includes barriers, which keep the harmful substances from getting inside the body. These barriers make the first line of defense in the immune reaction.
Answer:
Compost, Recycle, Plant a tree, Solar power, Wind power, Hydroelectric power, and Save water
