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the bodily process of discharging waste matter
embryonic leaf in seed-bearing plants
the fine spores that contain male gametes and that are borne by an anther in a flowering plant
warming when solar radiation is trapped by the atmosphere
the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane.
major ecological community with distinct climate and flora
part of DNA controlling physical characteristics and growth
a microscopic network of actin filaments and microtubules in the cytoplasm of many living cells that gives the cell shape and coherence
the resting state in which some animals pass the winter
the study of heredity and variation in organisms
the process by which the body breaks down food
the ripened reproductive body of a seed plant
a rigid layer of polysaccharides enclosing a plant membrane
a threadlike strand of DNA that carries genes
a digestive juice secreted by the liver
plastid containing chlorophyll and other pigments
a plant having foliage that is shed annually at the end of the growing season
a mature fertilized plant ovule consisting of an embryo and its food source and having a protective coat or testa
a substance that cannot be separated into simpler substances
The planet on which we live