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1. Biology the scientific study of life
2. Characteristics of 1. Be made of materials organized in a hierarchical pattern.
Life 2. Use energy and raw materials to survive
3. Sense and respond to changing environments and maintain internal stability,
or homeostasis.
4. Grow, develop, and reproduce.
5. Be part of a population that evolves.
3. The Cell the smallest unit that displays all characteristics of life
4. Matter Any substance that has mass and takes up space. All matter can be classified as
biotic or abiotic.
5. Biotic Living or having lived
6. Abiotic nonliving and never have been alive
7. Atom Basic unit of matter
8. Molecule a chemical structure consisting of at least two atoms held together by a chemical
bond
9. Macromolecules Technically polymers, made by combining smaller units called monomers. (Exam-
ple -Deoxyrbonucleic Acid [DNA])
10. Two main types Prokaryotic and Eukaryotic
of cells
11. Prokaryote Small and simple, do not have clearly defined compartments inside of them
12. Eukaryotes organisms made up of one or more cells that have a nucleus and mem-
brane-bound organelles
, WGU C190 Introduction to Biology Complete Questions With Solutions |
Updated
13. Organelles compartments inside of the cell that contain specific groups of macromolecules
and carry out specific cellular functions.
14. microorganism single-celled life forms
15. Tissues A group of similar cells that perform the same function.
16. Organs A collection of tissues that work together to carry out a common general function.
17. organ system the higher level of organization that consists of functionally related organs
18. Organism individual living entity that survive and reproduce as a unit
19. Population all the individuals of a species living in a specific area
20. Community All the ditterent populations that live together in an area
21. Ecosystem Consists of all the living things in a particular area together with the abiotic parts
of that environment.
22. Biosphere the of all ecosystems on Earth. Includes all habitable zones on the planet, includ-
ing land, soil, rocks the Earth's crust, water and ice, and the atmosphere.
23. Organization of Molecule, Cell, Organism, Population, Community, Ecosystem
Biosphere
24. Homeostasis the ability to maintain a stable internal environment
25. Nutrient Any matter an organism needs but cannot make for itself
26. Waste Matter that is not used by an organism tat is excreted
27. Energy the capacity to do work or to make a change in the location, temperature, or
structure of matter.