Biology 101 WGU Exam 1 with complete verified solutions already graded a+ 2024 latest update.

Biosphere Regions of the Earth's crust, waters, and atmosphere inhabited by living things Ecosystem a community plus the physical environment community interacting populations in a particular area organism an individual; complex individuals contain organ systems organ system composed of several organs working together organ composed of tissues functioning together for a specific task tissue a group of cells with a common structure and function cell the structural and functional unit of all living things Molecule union of two or more atoms of the same or different elements atom smallest unit of an element composed of electrons, protons, and neutrons protista protozoans and algae fungi molds and yeasts AD plantae Mosses, Ferns, Flowering plants Animalia invertebrates, fish, reptiles Domain Eukarya characteristics cells with nuclei Kingdom Animalia Characteristics Multicellular, motile, ingestion of food Phylum Cordata characteristics dorsal supporting rod and nerve cord Class Mammalia characteristics hair and mammary glands Order Primates characteristics adapted to climb trees family Hominidae characteristics adapted to walk erect Genus Homo Characteristics large brain, tool use species homo sapiens characteristics body characteristics similar to modern humans Taxonomy The scientific study of how living things are classified Domain Archaea Any of various single-celled prokaryotes genetically distinct from bacteria, often thriving in extreme environmental conditions Domain Bacteria One of the three domains of life; contains prokaryotic cells that differ from archaea because they have their own unique genetic, biochemical, and physiological characteristics. Eukaryote A cell that contains a nucleus and membrane bound organelles Protist Kingdom composed of eukaryotes that are not classified as plants, animals, or fungi Prokaryotic No nucleus Scientific Method A series of steps followed to solve problems including collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions. Observation Information obtained through the senses. inductive reasoning A type of logic in which generalizations are based on a large number of specific observations. Hypothesis A testable prediction, often implied by a theory deductive reasoning reasoning in which a conclusion is reached by stating a general principle and then applying that principle to a specific case (The sun rises every morning; therefore, the sun will rise on Tuesday morning.) prediction A statement of what will happen next in a sequence of events. experimental design A design in which researchers manipulate an independent variable and measure a dependent variable to determine a cause-and-effect relationship experimental variable An aspect of an experiment that changes during the course of the experiment control group In an experiment, the group that is not exposed to the treatment; contrasts with the experimental group and serves as a comparison for evaluating the effect of the treatment. Models representations of objects or systems Data Facts and statistics collected together for reference or analysis Theory A hypothesis that has been tested with a significant amount of data Care for their offspring Which of these is not a property of all living organisms? organization acquisition of materials and energy care for their offspring reproduction responding to the environment Atoms Basic unit of matter AD Molecules Chemicals that result from atoms linking together Cells Basic unit of life Tissues Groups of cells with a common structure and function. Organs Tissues are organized into:, group of tissues that work together to perform closely related functions. organ system group of organs that work together to perform a specific function Organisms individual living things populations groups of individuals that belong to the same species and live in the same area communities different populations that live together in a defined area ecosystems All the living and non-living things that interect in an area. Species A group of similar organisms that can breed and produce fertile offspring. AD Photosynthesis Conversion of light energy from the sun into chemical energy. energy the ability to do work Metabolism All of the chemical reactions that occur within an organism reproduce to make more of the same kind Genes DNA segments that serve as the key functional units in hereditary transmission. DNA A complex molecule containing the genetic information that makes up the chromosomes. Mutations a random error in gene replication that leads to a change development the process of change that occurs during an organism's life to produce a more complex organism Homeostasis A tendency to maintain a balanced or constant internal state; the regulation of any aspect of body chemistry, such as blood glucose, around a particular level Adaptation inherited characteristic that increases an organism's chance of survival Evolution Change over time Genus A group of similar species family in classification, group of similar genera order Group of similar families class Group of similar orders Phylum Group of closely related classes Kingdom First and largest category used to classify organisms Domain Most inclusive taxonomic category; larger than a kingdom Systematics study of the diversity of life and the evolutionary relationships between organisms 3 domains of life