| A | B |
| Producers | Organisms that capture the energy of sunlight to make food |
| Omnivores or Carnivores | Second-level consumers |
| Animal behaviors | Help an animal survive |
| Migration | Regular periodic movement of an animal from one place to another and then back again |
| Exhaustible resources | Resources that cannot be replaced once they are used up |
| Enviromental Issues | Can be addressed at the personal, local, national and global level |
| Climate differences | Affect the biodiversities different in deserts and tropical rain forests |
| Biodiversity increases | As the size of the area increases |
| Habitat destruction | Major human cause of extinction |
| Cell | Smallest unit of organization in the human body |
| Mouth | Begins digestion |
| Large intestine | Absorbs water |
| Passive immunity | Lasts a short time |
| Viruses | Cannot be cured by medicines |
| Allergies | Non-infectious disease |
| Involuntary actions | Controlled by the autonomic nervous system |
| Reflex | Involuntary response that occurs rapidly |
| Habitat | Specific environment of the ecosystem in which an organism lives |
| Producer | Organism that can make its own food |
| Deer | Consumer that is an herbivore |
| First organism in the food chain | Is the producer |
| Second level consumer | Kestrel eats a mouse that eats grass |
| Energy pyramid | Diagram that shows the amount of energy that moves from one feeding level to another in a food web |
| Producer level | Has the most available energy |
| Biome | Group of ecosystems with similar climates and organisms |
| Adaptions | Needed for an organism to survive and reproduce |
| Reproductive adaptions | Brightly colored petals, long care giving of penguin parents, and large numbers of amphibian offspring |
| Coal | Example of Non-renewable resource |
| Enviromental issues include | Resource use, population growth, and pollution |
| Human Population | Has increased during the last 3000 years |
| Global environmental choice | Nations meeting to discuss the ozone layer |
| Biodiversity | Different species in an area |
| Keystone species | Influences the survival of many other species in an ecosystem |
| Extinct species | Dramatically increased during the past few centuries |
| Loss of natural habitat | Habitat destruction |
| Biodiversity threats | Habitat destruction, pollution, poaching |
| Asexual Reproduction example | Budding in a hydra |
| Offspring of asexual reproduction | Inherit genes from a single paren |
| Alleles | Different forms of a gene |
| Curly hair allele with straight hair allele have curly hair offspring | Allele for curly hair is dominant |
| Nucleus | Directs the activity of cells |
| Tissue | Group of similar cells that perform the same function |
| Muscle tissue | Can contract or shorten |
| Epithelial tissue | Lines the stomach |
| Homeostasis | An organisms internal enviroment is kept stable in spite of changes in the external environment |
| Organ structure | Relates to the function of an organ |
| Exercise | Makes bones grow stronger and denser |
| Cardiac muscle | Found in the heart |
| Skeletal muscle | Tires easily during exercise |
| Involuntary muscle | Type of muscle that controls digestion |
| Muscle pairs work | One muscle in the pair contracts, the other returns to its original length |
| Exercise for muscles | Maintains muscle strength and flexibility |
| Skin protects | Keeps disease causing microorganism outside the body |
| Skin regulates body temperature | Enabling excess heat to escape from the body |
| Largest part of Food Guide Pyramid | Bread, cereal, rice, and pasta |
| Digestive system | Eliminates waste, breaks down food, absorb food molecules into blood |
| Stomach muscle structure | Churns and mixes food with digestive juices |
| Small intestine | Where chemical digestion takes place |
| Large intestine | Where most nutrients are absorbed |
| Cardiovascular system | Attacks diseases, brings oxygen, and takes waste away |
| Blood | Brings needed substances to the body cells |
| Arteries | Blood vessels that carry blood away from the heart |
| Right Ventricle | Pumps oxygen poor blood to the lungs |
| Right atrium | Receives blood with little oxygen and a lot of carbon dioxide |
| Capillaries | Materials exchanged between blood and body cells |
| Blood pressure | Force with which the ventricles contract |
| Plasma | Made of 90% water |
| Red blood cells | Carry oxygen to the body cells |
| White blood cells | Fight disease |
| Respiratory system | Brings oxygen to the body |
| Respiration | Chemical progress in which oxygen and glucose react to release energy |
| Alveoli | Part of the respiratory system where gas exhange occurs |
| Capillaries | Surrounds alveolus in a network |
| Diaphragm | Moves upward to exhale air from the lungs |
| Tar | Tobacco chemical that damages the cilia |
| Carbon monoxide | Tobacco chemical that combines with hemoglobin causing red blood cells to carry less oxygen |
| Infectious disease | Can pass from one organism to another |
| Person-to-person transfer | Spreads colds and flu |
| Tendon | Attaches muscle to a bone |