It is because all these three elements contain ionic properties and they have only one element in their outermost shell
<span>For a patient who tested positive for the influenza virus, type A, the coding system used is code 487.1. This code includes manifestations of laryngitis, pharyngitis, or respiratory infection, both upper and acute.</span>
Ans These differences show that they belong to a same kind of species. But in science whales are categorized as mammal
Explanation:
The kidneys filter any unwanted wastes from the body.<span> The glomerular filtration, reabsorption, and secretion take out any wanted fluids from your body when you drink water.</span>
Answer:
e) Invertebrates lack a nervous system
Explanation:
One of the main characteristics of invertebrates is that they don't have a backbone. Backbones belong to the skeletal system. A totally different story is the nervous system which runs inside the backbone. Although the more complex nervous systems appear in vertebrates the simply fact of having eyes like crabs or insects implies having a nervous system that can control them.