WGU C190 Introduction to Biology Latest Update Graded A
Biology ✔✔the scientific study of life
Characteristics of Life ✔✔1. Be made of materials organized in a hierarchical pattern.
- Use energy and raw materials to survive
- Sense and respond to changing environments and maintain internal stability, or homeostasis.
- Grow, develop, and reproduce.
- Be part of a population that evolves.
The Cell ✔✔the smallest unit that displays all characteristics of life
Matter ✔✔Any substance that has mass and takes up space. All matter can be classified as biotic or abiotic.
Biotic ✔✔Living or having lived
Abiotic ✔✔nonliving and never have been alive 1 / 3
Atom ✔✔Basic unit of matter
Molecule ✔✔a chemical structure consisting of at least two atoms held together by a chemical bond
Macromolecules ✔✔Technically polymers, made by combining smaller units called monomers.(Example -Deoxyrbonucleic Acid [DNA])
Two main types of cells ✔✔Prokaryotic and Eukaryotic
Prokaryote ✔✔Small and simple, do not have clearly defined compartments inside of them
Eukaryotes ✔✔organisms made up of one or more cells that have a nucleus and membrane- bound organelles
Organelles ✔✔compartments inside of the cell that contain specific groups of macromolecules and carry out specific cellular functions. 2 / 3
microorganism ✔✔single-celled life forms
Tissues ✔✔A group of similar cells that perform the same function.
Organs ✔✔A collection of tissues that work together to carry out a common general function.
organ system ✔✔the higher level of organization that consists of functionally related organs
Organism ✔✔individual living entity that survive and reproduce as a unit
Population ✔✔all the individuals of a species living in a specific area
Community ✔✔All the different populations that live together in an area
Ecosystem ✔✔Consists of all the living things in a particular area together with the abiotic parts of that environment.
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