The body of living organisms is composed of tiny units known as cells. These basic structural and functional units perform essential functions, supporting growth, metabolism, and overall biological processes within organisms.

The nucleus in a cell is surrounded by cytoplasm, a jelly-like substance that fills the cell. Cytoplasm contains various organelles and is essential for cellular processes and metabolism.

The pores on leaves that facilitate the intake of carbon dioxide are called stomata. These tiny openings also allow for gas exchange and play a crucial role in photosynthesis.

Sun is indeed the ultimate source of energy, the option "All of the above" can also be considered correct because:

• Plants: They convert solar energy into chemical energy through photosynthesis, serving as a primary food source.
• Earth: It provides the habitat and necessary conditions for life.

So, if "All of the above" is an option, it acknowledges the interdependence of the Sun, plants, and Earth in supporting life.

Cuscuta, commonly known as dodder, is a parasitic plant that lacks chlorophyll and does not perform photosynthesis. It has thin, yellowish-orange stems that wrap around host plants, deriving nutrients and water. Its leaves are reduced to minute scales, allowing it to depend entirely on its host for survival.

Cuscuta, commonly known as dodder, is generally a parasite. It attaches to host plants, deriving nutrients and water while lacking chlorophyll, which prevents it from photosynthesizing independently.