Endoskeletons are the internal skeleton of an animal. These are found in vertebrates that have bones and cartilages. They are exactly located within the soft tissues of vertebrates that provide support, protect internal organs, and allow movement through muscle contractions that are attached to the skeletons.
Humans have an endoskeleton that consists of 206 bones in the adult body. Aside from providing support and structure to the body, the endoskeleton also stores minerals and lipids, and helps in the production of blood cells in the body.
Euthrophication is caused by excess nutrient run off, such as nitrogen or phosphorus. A common chemical that generally cause euthrophication is fertilizers from farm, if there's heavy rainfall or floods, they're easily washed into the rivers and lakes to cause euthrophication.
Euthrophication generally cause a sudden large scale algao bloom, or other plants, and they may cover the whole surface of water. Once these plants die, decomposers such as bacteria decompose them and take in oxygen for respiration, such that animals from the river originally may die due to lack of oxygen.
The blastocyst implants itself to the uterine wall during 2 week after conception
A. cloning
The rest relate to the change or identification of genes.
These organelles group together to eventually form cells, or the basic units of all living things.
Organelles are specialized structures in the cytoplasm of cells which provide essential cell functions and are composed of different molecules (macromolecules). Cells as the smallest basic units of life are then grouped in tissues (similar cells which provide a specific function), layers of different tissues work together to provide specific function and form organ, organ group in organ systems which then compose the whole organism.
