This garden pea plant is (a true line, not a true line) for the trait of pea shape, and is (homozygous, or heterozygous) for the gene determining the pea shape trait.

a chair, a bed, and a toothbrush

explanation:

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.