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Midterm les. 1,2,3,4
| Term | Definition |
|---|---|
| organism | living thing |
| chlorophyll | is able to use energy from sunlight |
| unicellular | or one-celled, organism is made of a single cell that carries out basic life processes |
| multicellular | or many-celled, organisms that are made of more than one cell |
| cell | is the smallest unit of living things that can carry out basic life processes 1 |
| tissue | similar cells working together to do the same job, or function 2 |
| organ | a group of tissues that work together to perform a specific function 3 |
| organ system | organs that work together to perform a certain function 4 |
| classification | has been called the science of finding patterns |
| kingdom | the broadest group an organism can be classified into |
| species | the narrowest group an organism can be classified into |
| vertebrete | animal with a backbone |
| invertebrete | animal without backbone |
| vascular | means "contains tubes or vessels" |
| nonvascular | do not have vascular tissue |
| gymnosperm | is a seed plant that does not produce flowers |
| angiosperm | is a seed plant that produces flowers |
| xylem | is a series of tubes that moves water and minerals up the stem |
| phloem | moves sugars made in the plant's leaves to other parts of the plant |
| cambium | the layer that the xylem and phloem are separated by |
| photosynthesis | the process of making food |
| transpiration | the loss of water through a plant's leaves |
| cellular respiration | energy is released when cells use oxygen to break down sugars |
| asymmetrical | cannot be divided into mirror images |
| radial symmetry | is a body plan when all parts of an organism can be arranged around a central point |
| bilateral symmetry | is a body plan that can be divided along one plane, two mirror images |
| monotreme | mammal that lays eggs |
| marsupial | a pouched mammal |
| placental mammal | when the young of a mammal develops inside its mother |