Because of their high rate of mutation. They also can be hard to track because they infuse their DNA into your body cell DNA and can lay dormant and undetected for years.
Autonomy vs shame and doubt
The autonomy vs shame and doubt age is a phase during the development of children. It occurs between the ages of 18 months and three years old. During this stage, the children start to become more independent and start making some of their own decisions. These decisions include what to wear, what to eat and what to play with. Having overbearing parents hinders the development of this stage of development.
During respiration, members of the animal kingdom use oxygen and then release carbon dioxide as a waste gas.
Members of the animal kingdom have a respiratory system that is composed of muscles, and airways that functions together to transport air into lungs, and the oxygen is used by cells. Carbon dioxide is also transported away from the cells as a waste gas. Respiration relies on other systems, such as the circulatory system, to transport oxygen and carbon dioxide to and from cells.
Answer:
Both plants and animals use this molecule to create energy, making it essential to life on Earth. ... To create one molecule of glucose, the plant needs to absorb six molecules of carbon dioxide and six molecules of water. This leaves six oxygen atoms free, which are released as waste.
