WGU Academy Biology Exam 1 | 100 Questions And Answers!!

Which classification category includes the most species? - Kingdom Humans belong to the kingdom of - Animalia Which level of biological organization is composed of several tissues? - Organ A collection of ___ combine together to form___ - cells; tissue All the organisms of various species living within a given area constitute a(n) - Community An ecosystem generally requires solar energy, nutrients, decomposers, consumers and _____ - Producers The term "biodiversity" refers to - The total number of species, variation of species, and the ecosystems in which they live The ultimate goal of behavior is largely thought to maximize survival and reproductive success. Despite life coming in many different forms, it is therefore not surprising that virtually all organisms' behaviors are oriented towards avoiding injury, acquiring energy, or ______ - Reproducing A covalent bond is - Sharing of electrons between two atoms At the most basic level, in order to produce oxygen and a carbohydrate (comprised of carbon, hydrogen, and oxygen), carbon dioxide must react with _____ as a source of hydrogen. - Water The water strider is an insect that skates across the water without sinking. The tips of its feet must be coated with molecules that are - HydrophobicThe backbone of a nucleic acid strand is composed of - Alternating pentose sugars and phosphate groups