| A | B |
| ecosystem | all the living and non living things in an environment and how they interact |
| habitat | a plance where and animal or a plant lives |
| chlorophyll | the green substance found in plants that traps energy from the sun and gives plants their green color |
| carbon dioxide | a gas found in air |
| photosynthesis | a process by which plants change light energy from the sun and use it to make sugar |
| producer | a living thing that uses sunlight to make sugar |
| consumer | a living thing that gets energy by eating plants and other animals |
| herbivore | a consumer that eats plants |
| carnivore | a consumer that eats other consumers |
| omnivore | a consumer that eats both plants and other consumers |
| scavenger | an animal that eats dead animals |
| decomposer | a consumer that puts materials from dead plants and animals back into the soil, air and water |
| food chain | the flow of energy through a community |
| predator | an animal that hunts and kills other animals for food |
| prey | the animals that predators hunt |
| food web | all the food chains in a community |
| dormant | the resting stage of a seed |
| stamens | part of a flower that makes pollen |
| pollen | tiny grains that makes seeds when combined with a flowers egg |
| backbone | the main bone made up of many small bones joined together that runs along the middle of the back of some animals |
| reproduce | to make more of the same kinds |
| spore | tiny cells that can grow into a new plant |
| conifer | a plant that makes seeds inside cones |
| classify | to sort into groups based on similarities and differences |
| molt | to shed an animal's outer covering |
| exoskeleton | a hard outer covering that supports and protects some animals without backbones |
| dicot seed | a seed that has two seed leaves that contain stored food |
| monocot seed | a seed that has one seed leaf and stored food outside the seed leaf |
| embryo | tiny part of a seed that can grow into a new plant |
| fertilization | the combination of sperm from a pollen grain with an egg to form a seed |
| ovule | the inner part of an ovary that contains an egg |
| ovary | the bottom part of the pistel in which seeds form |
| pollination | the movement of pollen from a stamen to a pistel |
| behavior | the way a living thing acts |
| mammal | an animal with a backbone that usually has hair on its body and feeds milk to its young |
| instinct | a behavior that an animal is born with and does not need to learn |
| sepals | one of the leaf like part that protects a flower bud that is usually green |
| reflex | a simple, automatic behavior |
| stimulus | the cause of a behavior |
| pistel | part of the flower that makes the eggs that grow into seeds |
| amphiban | one of the large group of animals with backbones that live part of their lives in water and part on land |
| reptile | an animal with a backbone that has a dry, scaly skin |
| gills | organs for breathing found in fish and amphibians |
| response | a behavior caused by a stimulus |