Filter the results Item type Select All/None Question Image Stats Collection File Quiz Movie Page Folder New items since Yesterday Last week Last month Ever Search results Subscribe to an always-updated RSS feed. 1924 items matching your search terms. Sort by relevance date (newest first) alphabetically A chemical structure consisting of at least two atoms held together by a chemical bond Located in Biology / Basics / Introductory concepts in Biology - 3 A diagram showing the evolutionary relationships among biological species based on similarities and differences in genetic or physical traits or both Located in Biology / Basics / Introductory concepts in Biology - 3 A group of similar cells carrying out the same function Located in Biology / Basics / Introductory concepts in Biology - 3 A large molecule typically formed by the joining of smaller molecules Located in Biology / Basics / Introductory concepts in Biology - 3 A membrane-bound compartment or sac within a cell Located in Biology / Basics / Introductory concepts in Biology - 3 A structure formed of tissues operating together to perform a common function Located in Biology / Basics / Introductory concepts in Biology - 3 A unicellular organism that lacks a nucleus or any other membrane-bound organelle Located in Biology / Basics / Introductory concepts in Biology - 3 All individuals within a species living within a specific area Located in Biology / Basics / Introductory concepts in Biology - 3 The higher level of organization that consists of functionally related organs Located in Biology / Basics / Introductory concepts in Biology - 3 A basic unit of matter that cannot be broken down by normal chemical reactions is called ___________. Located in Biology / Basics / Introductory concepts in Biology - 1 Previous 10 items 1 ... 3 4 5 6 7 8 9 ... 193 Next 10 items