AP BIOLOGY

Detailed explanation-1: -Not every plant grows from a seed. Some plants, like ferns and mosses, grow from spores. Other plants use asexual vegetative reproduction and grow new plants from rhizomes or tubers. We can also use techniques like grafting or take cuttings to make new plants.

Detailed explanation-2: -Ferns and mosses are non-seed plants. They don’t make seeds, but they make spores, and the new plant grow from this spore.

Detailed explanation-3: -A seedling is a young plant or sporophyte developing out of a plant embryo from a seed. Seedling development starts with germination of the seed. A typical young seedling consists of three main parts: the radicle (embryonic root), the hypocotyl (embryonic shoot), and the cotyledons (seed leaves). Q.

Detailed explanation-4: -One of the main functions of a fruit is to spread the seeds and allow the plant to reproduce. Therefore, all flowering plants produce fruit, regardless of whether the fruit is edible, sweet, or soft. This means that, although we call peppers and cucumbers vegetables, they are technically fruits (Figure 2).

Detailed explanation-5: -Most plants grow from seeds. For months or even years a seed may remain dormant (inactive). Inside the seed is an embryo: the basic parts from which a young plant, or seedling, develops. The seed also contains food to keep the embryo alive.