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Transcript
THE LIVING ENVIRONMENT VOCABULARY VOCABULARY WORD Asymmetry Autotroph Bilateral Symmetry Cardiovascular System Carnivore Cartilage Cell Cell membrane Cell Theory Cell Wall Central Nervous System Chlorophyll Chloroplast Circulatory System Classification Compound microscope Connective tissue Cytoplasm Diffusion Digestion Epithelial tissue Endoskeleton Eukaryote Exoskeleton DEFINITION Having no definite symmetry An organism that makes its own food. Line symmetry; the quality of being divisible into two halves that are mirror images. The body system that consists of the heart, blood vessels, and blood, and that carries needed substances to cells and carries waste products away from the cells. An animal that eats only other animals. A connective tissue that is more flexible than bone and that gives support to some parts of the body. The basic unit of structure and function in an organism. A cell structure that controls which substances can enter or leave the cell. A widely accepted explanation of the relationship between cells and living things. A rigid layer of non-living material that surrounds the cells of plants and some other organisms. The brain and the spinal cord; the control center of the body. A green pigment found in the chloroplasts of plants, algae, and some bacteria. A structure in the cells of plants and some other organisms that captures energy from light and uses it to produce food. The body system that consists of the heart, blood vessels, and blood, and that carries needed substances to cells and carries waste products away from the cells. The process of grouping things based on their similarities. A light microscope that has more than one lens. A body tissue that provides support for the body and connects all of its parts. The region of the cell inside the cell membrane (in prokaryotes),between the cell membrane and nucleus (in eukaryotes); contains a gel-like material and cell organelles. The process by which molecules move from an area of higher concentration to an area of lower concentration. The process by which the body breaks down food into small nutrient molecules. A body tissue that covers the surfaces of the body, inside and out. An internal skeleton. An organism with cells that contain nuclei and other cell structures. A waxy, waterproof outer shell. LE - 7 VOCABULARY WORD Heart Heterotroph Homeostasis Invertebrate Ligament Lysosome Magnification Mitochondria Mitosis Multicellular Muscle tissue Nerve tissue Nonvascular plant Nucleus Omnivore Organ Organ system Organelle Organism Osmosis Phloem Photosynthesis Prokaryote Radial Symmetry Respiration DEFINITION A hollow muscular organ that pumps blood throughout the body. An organism that cannot make its own food. The maintenance of stable internal conditions despite the changes in an organism’s surroundings. An animal that does not have a backbone. Strong connective tissue that holds together the bones in a movable joint. A small round cell structure that contains chemicals that break down large food particles into smaller ones. The ability to make things look larger than they are. Rod-shaped cell structures that produce most of the energy needed to carry out the cell’s function. The stage of the cell cycle during which the cell’s nucleus divides into two new nuclei and one copy of DNA is distributed into each daughter cell. A type of organism that is made up of many cells. A body tissue that contracts or shortens, making body parts move. A body tissue that carries messages back and forth between the brain and every other part of the body. A low-growing plant that lacks vascular tissue. A cell structure that contains the chemical instructions that direct the cell’s activities. An animal that eats both plants and animals. A structure in the body that is composed of different types of tissue. A group of organs that work together to perform a major function in the body. A tiny cell structure that carries out a specific function within the cell. A living thing. The diffusion of water molecules through a selectively permeable membrane. The vascular tissue through which food moves in some plants. The process by which plants and some other organisms capture light energy and use the light energy to make food from carbon dioxide and water. An organism whose cells lack a nucleus and some other cell structures. The quality of having many lines of symmetry that all pass through a central point. The process of breaking down food to release its energy. LE - 8 VOCABULARY WORD Selectively Permeable Spontaneous generation Taxonomy Tissue Unicellular Vacuole Vascular plant Vascular Tissue Vertebrate Xylem DEFINITION A property of cell membranes that allows some substances to pass through, while others cannot. The mistaken idea that living things arise from non-living sources. The scientific study of how living things are classified. A group of similar cells that perform a specific function in an organism. A type of organism made of only one cell A water-filled sac inside a cell that acts as a storage area. A plant that has vascular tissue. The internal transporting tissue in some plants that is made up of tube-like structures. An animal that has a backbone. The vascular tissue through which water and nutrients move in some plants. LE - 9