The ports on your router are already switch ports. If they weren't, they'd have IP addresses associated with them. DHCP has nothing to do with routers or router functionality, it is included as an added feature. You can turn it off and the device is still a router.
The plant root system constitutes the major part of the plant body, both in terms of function and bulk. In terrestrial plants, the root system is the subterranean or underground part of the plant body while the shoot is the aboveground part. Roots are branching organs which grow downward into the soil, a manifestation of geotropism. Branching occurs irregularly and not from nodes as in stems.
What are the three main parts of a seed? (They are the seed coat, the embryo, and the food supply.) What do seeds need to grow into plants? (They need light, water, the right temperature, nutrients, room to grow, and time.) What are the three main parts of a plant? What function does each serve? (The three main parts are the root, stem, and leaves. The root anchors the plant and takes in water and nutrients from the soil. The stem helps support the plant. Leaves take in light, which the plant will use to make its own food.) Do you have plants at home? If so, what do you observe about how they grow? Do they have any additional parts?