If a person has blood type B, that means you can only donate blood to blood types such as AB or B
If a person has O, that means it can donate blood to all blood types
If its A, they can donate blood to blood types of AB and A
If its AB it can donate to blood types of A, B, and AB
The changes that occur in body size, proportions, and skeletal maturity during the middle childhood include; Bones continues to strengthen and broaden, permanent teeth replace the primary teeth, normally a third of school age children suffer from malocclusions, making braces common by the end of elementary school. Additionally, the children's growth is slow and regular though large individual and ethics variations exists in the physical growth. <span />
In an ecosystem, two factors are being classified which are the abiotic and the biotic factors. Both of these factors play an important role in order to balance the ecosystem and maintain the harmony of the living things therein. The environment includes the abiotic factors which are the sunlight, weather, water, air, and all other factors which are not living but contribute to the growth and development of the living ones. For example, plants cannot live without water, sunlight and carbon dioxide. The effects that humans have on the environment is both good and bad. Humans also play an important role in maintaining the environment, and they also have the capability to endanger it.
