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## SCIENCE ### Trophic Levels, Food Chains, and Food Webs The food chain always begins with the sun and captured by producers like plants, and flows through the entire chain, connecting all living organisms in an eco system. ### FOOD CHAINS - representation of the flow of energy and feeding relat...

## SCIENCE ### Trophic Levels, Food Chains, and Food Webs The food chain always begins with the sun and captured by producers like plants, and flows through the entire chain, connecting all living organisms in an eco system. ### FOOD CHAINS - representation of the flow of energy and feeding relationships from one organism to another in an ecosystem. - Organisms like plants and algae that create their own food through photosynthesis, forming the base of the food chain. **PRODUCERS** * Herbivores that feed directly on producers, such as grasshoppers, deer, or rabbits. **PRIMARY CONSUMER** *** **Carnivores** or carnivores that eat primary consumers like frogs, small birds, or lizards. **SECOND CONSUMER** Predators that eat secondary consumers such as snakes, hawks, or big cats. **TERTIARY CONSUMER** Top predators that have no natural enemies such as sharks, eagles, or lions. **APEX PREDATORS / QUATERNARY CONSUMERS** **FOOD WEB** shows how they interact * Fox * Rabbit * Eagle * Mouse * Grasshopper * Frog *** **Mitosis** Mitosis is a type of cell division that helps your body: - Growth - Repairs itself * One cell divides to form two identical cells which means the new cell have the same job as the original cell. **Diagram of Cell Division** * A diagram of cell division is displayed. * **Carnivores** (arrows heading toward them) * **Herbivores** (arrows heading toward them) * **Producers** (grass which has most mass) *** ### PMAT * Interphase * G1 phase * S phase * G2 phase * Preparing for division * DNA replication * Prophase * Chromosomes condense * Nuclear membrane disappears * Main event: Spindle fibers form * Metaphase * Chromosomes align on the metaphase plate * Anaphase * Chromatids are pulled apart * Chromatids move to opposite poles * Telophase * Nuclear membrane reforms around chromosomes * 2 nuclei formed ### CYTOKINESIS * The cell finally splits into two identical daughter cells * **XY - male** **XX - female** ### CHROMOSOME * Found inside the nucleus of a cell. * Made up of proteins and DNA. * Organized into genes. ### CHROMATIDS * one of the two identical halves of a chromosome that has been replicated in preparation for cell division. * Diagram of a cell is displayed with chromatids and a nucleus.