When h forms a bond with h2o to form hydronium ion, h3o , this bond is called a coordinate covalent bond.
Answer: All models have limitations because they are not representative of every possible scenario. They use current knowledge and scientific data, but as those are subject to change, the models based off that knowledge and data are subject to change as well.
Explanation: Brainliest please, if I helped you! :)
Sulfur and phosphorus compounds enter bodies of water, such as ponds, lakes, and rivers <span>as run-off containing fertilizers and detergents. And based by this, this would then be runned by sedimentation as the deposition of how the water would work and how it would enter the bodies such as the ponds and lakes and other forms of water areas.</span>
Scientists compare the anatomy, embryos, and DNA of living things to understand how they evolved. Evidence for evolution is provided by homologous structures. These are structures shared by related organisms that were inherited from a common ancestor.
The only explanation I have is that the cells in multicellular organisms are specialized. They all have jobs, like members of a community.