Concept Check Questions TCC

Why is evolution considered the core theme of biology?

Domain _____ and domain ____ consist of prokaryotes.

Domain ____, the eukaryotes, includes various groups of protists and the kingdoms Plantae, Fungi and Animalia.

Darwin proposed ______ _____as the mechanism for evolutionary adaptation of populations to their environment.

In scientific _____ , scientist make observations (collect data) and ____ ____ to draw a general conclusion which developed into a testable _____.  _____  _____ makes prediction that can be used to test hypotheses.

_____ cannot be broken down chemically to other substances.

A _____ contains two or more different elemts in a fixed ratio.

An electrically neutral atom has equal numbers of electrons and protons; the numbers of protons determines the _____ _____.

The atomic mass is measured in ______ and is roughly equal to the sum of protons plus neutrons.

_____ of an element differ from each other in neutron number and therefore mass.

In an atom, electrons occupy specific _____ _____; the electrons in a shell have a characteristic energy level.

An atom that has an incomplete outer shell, the _____ ____, is reactive.

Molecules consist of two or more ______ bonded atoms.

The attractions of an atom for the electrons of a covalent bond is its ___________.

If both atoms are the same, they have the same electronegativity and share a _____ _____ ____.

An ____ forms when an atom or molecule gains or loses an electron and become charged.

An ____ _____ is the attraction between two oppositely charged ions.

A _____ _____ is an attraction between a hydrogen atom carrying a partial positive charge and an electronegative atom.