[Solved] A serious degree of overweight characterized by an excessive amount of body fat is called ________. Land Plants: A large group of terrestrial plants, including bryophytes, ferns, and seed plants, that are key contributors to terrestrial ecosystems and the global oxygen cycle. Megafossils: Large fossilized remains or impressions of plants or animals visible to the naked eye, used in the study of paleontology. Paleontologist: A scientist who studies fossils to understand the history of life on Earth, including the evolution of plants and animals. Early Plants: Refers to the first primitive forms of plant life that began to emerge on Earth over 500 million years ago, playing a crucial role in the development of terrestrial ecosystems.