Filter the results Item type Select All/None File Folder Question Quiz Image Collection Stats Page Movie New items since Yesterday Last week Last month Ever Search results Subscribe to an always-updated RSS feed. 2201 items matching your search terms. Sort by relevance date (newest first) alphabetically 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 An organism that can make its own food from materials in its environment is called __________. Located in Biology / Basics / Introductory concepts in Biology - 1 The smallest unit of biological structure that meets the functional requirements of “living” is the ________. Located in Biology / Basics / Introductory concepts in Biology - 1 Which of the following sequences represents the hierarchy of biological organization from the most complex to the least complex level? Located in Biology / Basics / Introductory concepts in Biology - 1 Which of the following statements is false? Located in Biology / Basics / Introductory concepts in Biology - 1 A cell membrane contains a varying amount of proteins and __________ Located in Biology / Cell Structure / Cell membrane Previous 10 items 1 ... 4 5 6 7 8 9 10 ... 221 Next 10 items