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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 |