Which statements accurately describe elements? Check all that apply. Elements are made up of two or more types of atoms. Element
s are made up of only one type of atom. Each element has a unique chemical symbol. Elements can be identified by their atomic number. One element cannot be combined with another element.
Chemical elements are the basic constituents of all substances. At the microscopic level, the following definition can be made: A chemical element is the set of atoms that have the same atomic number. The chemical element is formed of only one type of atom, has a unique and unique chemical symbol and can be identified by its atomic number.
Currently about 115 chemical elements are officially recognized, with properties quite different from each other and others that resemble each other. Therefore, the elements were organized in ascending order of atomic number, forming a set that is known as the Periodic Table.
Scientists collect information that allows them to make evolutionary connections between organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the case of phylogeny, evolutionary investigations focus on two types of evidence: morphologic (form and function) and genetic.
Insects have jointed legs, segmented bodies and exoskeletons.
Insects are most documented and recognized species on earth. They are also the most diverse group of organism. There are around 900 thousand of insects living on Earth, it is almost eighty percent of all the known species.
