Final answer:
True, the receptacle is the part of an angiosperm where all flower parts, including sepals, petals, stamens, and carpels, are attached.
Step-by-step explanation:
True: The receptacle is indeed the part of an angiosperm where all the flower parts are attached. Angiosperms, which represent about 90 percent of all plant species, feature flowers as key structures for reproduction. Flowers typically have four main parts: the sepals, petals, stamens, and carpels, which are collectively responsible for the reproductive process. The receptacle is the foundation of a flower to which these parts are connected. The sepals and petals collectively form the perianth, which protects the reproductive structures and, in the case of petals, often attracts pollinators with their bright colors.
The stamens consist of the filament and the anther, where the male gametes, or pollen grains, are produced. The carpels, comprising the stigma, style, and ovary, house the female gametes and eventually develop into fruit post-fertilization, aiding seed dispersal. The design of flowers, including their shape, color, and arrangement, is specific to plant species, aiding in pollination and reproduction.