Question
structures that have different mature forms in different organisms but develop from the same embryonic tissue
Answers
GPT-4o mini
Structures that have different mature forms in different organisms but develop from the same embryonic tissue are referred to as **homologous structures**. Homologous structures are evidence of common ancestry and demonstrate how different organisms can adapt similar embryonic tissues to develop different functions or structures.
A classic example of homologous structures is found in the forelimbs of vertebrates. Despite their different functions and appearances, the forelimbs of humans (arms), whales (flippers), birds (wings), and bats (wings) all share a similar underlying bone structure. These limbs develop from the same embryonic tissues (mesoderm) but have adapted over time to suit different modes of life.
Other examples of homologous structures include:
1. **Plant structures**: Different plants may develop leaves, stems, and roots from the same embryonic tissues, adapting these structures to their specific environments.
2. **Animal hair and feathers**: Both hair in mammals and feathers in birds develop from similar epithelial cells, with different outcomes in insulation and flight capabilities.
These examples illustrate how diverse forms can arise from a common developmental origin, highlighting the concept of evolutionary divergence among species.
A classic example of homologous structures is found in the forelimbs of vertebrates. Despite their different functions and appearances, the forelimbs of humans (arms), whales (flippers), birds (wings), and bats (wings) all share a similar underlying bone structure. These limbs develop from the same embryonic tissues (mesoderm) but have adapted over time to suit different modes of life.
Other examples of homologous structures include:
1. **Plant structures**: Different plants may develop leaves, stems, and roots from the same embryonic tissues, adapting these structures to their specific environments.
2. **Animal hair and feathers**: Both hair in mammals and feathers in birds develop from similar epithelial cells, with different outcomes in insulation and flight capabilities.
These examples illustrate how diverse forms can arise from a common developmental origin, highlighting the concept of evolutionary divergence among species.