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Stack #4604678
Science Unit 2
| Question | Answer |
|---|---|
| Biomimicry | A field that uses design solutions found in nature to solve human design problems. |
| Brain | An organ that organizes and processes information from sensory receptors. It can be a simple cluster of neurons or a complex organ made of many structures. |
| Cell | The basic unit of a living thing. An organism can be made of one or more cells that can perform all the processes needed for life. |
| Chemical Receptors | Sensory receptors that detect chemical signals, such as odors and tastes. |
| Circulatory System | An animal organ system that carries oxygen, water, and nutrients to all the cells of the body. In mammals, it includes the cardiovascular and lymphatic subsystems. |
| Digestive System | An animal organ system that breaks down food that the body uses for energy, growth, and repair, and eliminates solid waste. |
| Electromagnetic Receptors | Sensory receptors that detect electromagnetic radiation, such as light |
| Excretory System | An animal organ system that removes wastes from the body, such as excess water, carbon dioxide, and toxins. |
| Exoskeleton | An external skeleton, such as that found on insects, which provides a stiff, protective armor. |
| Homeostasis | The process by which the inside of the body maintains stable conditions when internal and external environments change. |
| Hibernation | A behavior that allows animals to survive during winter months when food is scarce by entering a period of inactivity and surviving off stored body fat. |
| Innate Behavior | Behaviors that do not require learning or experience; animals are born knowing them. |
| Learned Behavior | Behaviors that develop through memories and experience, and from observing the actions of other animals. |
| The plant organ that is the main site of photosynthesis. | Leaf |
| Mechanical Receptors | Sensory receptors that detect pressure, movement, and tension. |
| Memory | Information stored in the brain, such as an event or information related to sensory stimuli. |
| Multicellular Organism | An organism made up of more than one cell. The cells are specialized and organized to perform specific functions. |
| Muscular System | A body system that provides internal and external movement for an animal. |
| Negative Feedback | A process that occurs when the body senses a change and activates processes that will slow or prevent the change. |
| Nervous System | A network of branching nerves in most animals that collects and processes information, communicating messages between the brain and other parts of the body. |
| Neurons | Specialized cells through which information travels in the nervous system, often in the form of electrical signals. |
| Organ | A structure formed by different types of tissues that function together. Examples include a plant stem or an animal's blood vessel. |
| Organ System | A group of organs that work together to perform body functions. Examples include a plant's shoot system or an animal's circulatory system. |
| Organism | A living thing made up of one or more cells that can perform all the processes needed for life. |
| Phloem | A type of vascular tissue that moves sugars made during photosynthesis throughout the plant. |
| Photosynthesis | The process that uses energy from sunlight to convert water molecules and carbon dioxide into sugars and oxygen. |
| Positive Feedback | A process that occurs when the body activates processes that increase or reinforce a change. |
| Respiratory System | An animal organ system that takes in oxygen and releases carbon dioxide. |
| Root System | One of the two main organ systems in a plant, which takes up water and nutrients from the soil. |
| Sensory Receptors | Specialized cells in an animal's nervous system that help gather information about its environment. |
| Shoot System | One of the two main organ systems in a plant, which includes the leaves, stems, and flowers. |
| Skeletal System | A body system that provides support for an animal. It can be internal (endoskeleton) or external (exoskeleton). |
| Stimulus | An environmental message, such as light, heat, or pressure, that can be detected by a sensory receptor. |
| Taproot | A type of root system featuring one large main root with many smaller branch roots that grows deep into the soil. |
| Fibrous Root | A type of root system with many branching roots that grow close to the soil surface, forming mats that anchor the plant. |
| Tissue | A group of similar cells that are organized to perform a specific function. |
| Unicellular Organism | An organism made up of only a single cell, which performs all functions needed for life. |
| Vascular Plant | A plant that has a vascular system to transport materials and provide support to the plant body. |
| Vascular Tissue | In plants, tissue that transports water and nutrients. It includes xylem and phloem. |
| Xylem | A type of vascular tissue consisting of tube-shaped cells that moves water from the roots to the stems. |
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