Final answer:
A bear is classified under Kingdom Animalia, which is characterized by multicellular, heterotrophic organisms that ingest other organisms for energy. The sea cucumber, despite its misleading name, is also a member of Animalia, while an orchid falls under Plantae. Animals feature specialized tissues and generally reproduce sexually, indicating a shared developmental sequence within the kingdom.
Step-by-step explanation:
Within the Kingdom Animalia, a bear falls under the category of multicellular, heterotrophic organisms that derive their energy through ingesting other organisms. This contrasts with Kingdom Plantae, where organisms, like the orchid, are autotrophic and primarily use photosynthesis to obtain energy. The sea cucumber, despite its plant-like name, is also a member of the Animalia Kingdom due to its attributes of being multicellular, heterotrophic, and having a body with tissue differentiation. The organisms pictured in Figure 1.10.2: Diversity of Animals, such as the sponge (A), flatworm (B), flying insect (C), frog (D), tiger (E), and gorilla (F), all exemplify the vast diversity found in the animal kingdom, exhibiting various body plans and specialized tissues including nervous, muscular, connective, and epithelial which are common characteristics among animals.
Since animals are such a diverse group ranging from simple forms like sponges to complex forms like humans, they share key features that unite them under this kingdom. These include being eukaryotic, multicellular, and demonstrating a heterotrophic lifestyle where they ingest their food. Furthermore, they usually have the capacity for motility and possess differentiated tissues designed for specific functions.
When classifying the bear using the taxonomic classification system, we can determine that it fits under the Animalia Kingdom. Going from kingdom to species, one could use the classification provided for a common dog as a model to comprehend the systematic approach of taxonomy: Eukarya, Animalia, Chordata, Mammalia, Carnivora, Canidae, Canis, and lupus, with each term in the sequence offering a more specific category or group.