| A | B |
|---|
| physiology | the study of life processes in an organism |
| pore spaces | spaces in the soil that determine how much water and air the soil can hold |
| loam | a mixture of gravel, sand, silt, clay and organic matter |
| cohesion | a molecular attraction by which the particles of a body are united throughout the mass whether like or unlike |
| translocation | the process by which organic substances move through the phloem of a plant |
| hormones | chemicals that circulate throughout multicellular organisms, regulating cellular processes by interacting with specifically targeted cells |
| phototropism | a growth response to light |
| gravitropism | a growth response to gravity |
| thigmotropism | a growth response to touch |
| perfect flowers | flowers with both stamens and carpels |
| imperfect flowers | flowers with either stamens or carpels, but not both |
| pollination | the transfer of pollen grains from the anther to the carpel in flowering plants |
| seed | an ovule with a protective coating, encasing a mature plant embryo and a nutrient source |
| fruit | a mature ovary that contains a seed or seeds |
| pod | in a fruit an ovary with a single chamber containing many seeds |
| nut | in a fruit when the ovary forms a hard, woody covering around a single seed |
| grain | in a fruit if the ovary wall is connected to the seed |
| fleshy fruit | fruit that has fleshy fruit between the seeds and the ovary covering |
| dry fruit | fruit that has no fleshy tissue between the seeds and the ovary's covering |
