PLEASE HELP ME I'M SO LOST
It's the Science 7B Classification Sample Work.
Here are the questions that I need the answers to. (I'm checking my answers because I'm not confident in my answers):
1. Develop a model that categorizes organisms based on common characteristics.
2. Explain how an organism's scientific name correlates to the shared characteristics of taxonomic levels.
3. Describe the similarities and differences of major physical characteristics in plants, animals, fungi, protists, and bacteria.
4. Develop and use models to classify organisms based on the current hierarchical taxonomic structure (including the kingdoms of protists, plants, fungi, and animals).
5. Analyze and interpret data related to the diversity of animals to support claims that all animals (vertebrates and invertebrates) share common characteristics.
PLEASE HELP I NEED THE ANSWERS BY TOMORROW!
Please and thank you!
1. A model for categorizing organisms based on common characteristics could involve a hierarchical approach, beginning with the broadest categories (domains: Bacteria, Archaea, and Eukarya) and moving down to more specific categories (kingdoms, phyla, classes, orders, families, genera, and species). Organisms would be grouped together based on their shared characteristics, such as type of cells, body structure, modes of nutrition, and reproduction mechanisms.
2. An organism's scientific name consists of two parts: the genus name and the species name. This naming system, called binomial nomenclature, reflects the hierarchical structure of taxonomy. For example, the scientific name for humans is Homo sapiens, where "" represents the genus and "sapiens" represents the species. This system helps to demonstrate how closely related an organism is to another within higher taxonomic levels, with organisms in the same genus often sharing more characteristics than those in the same family or order.
3. Major physical characteristics in each group:
- Plants: These are multicellular, primarily sedentary organisms that use chlorophyll for photosynthesis. They have cell walls made of cellulose, and they reproduce through spores or seeds.
- Animals: These are multicellular, motile organisms that are mostly heterotrophic, which means they consume other organisms for energy. They lack cell walls and reproduce sexually.
- Fungi: These are mostly multicellular organisms with cell walls made of chitin. They absorb nutrients from other organisms, either through decomposition or parasitism, and reproduce via spores.
- Protists: This is a diverse group that includes both unicellular and multicellular organisms. They can be autotrophic or heterotrophic and can exhibit various forms of reproduction. Some have cell walls, while others do not.
- Bacteria: These are unicellular organisms with a simple cell structure, lacking a nucleus and other membrane-bound organelles. They have cell walls made of peptidoglycan and reproduce asexually through binary fission.
4. To classify organisms based on the current hierarchical taxonomic structure, you would first determine which domain the organism belongs to based on cell type and structure (Bacteria, Archaea, or Eukarya). Within Eukarya, you would then identify the appropriate kingdom (protists, plants, fungi, or animals), using the major physical characteristics described above. Further classification into phyla, classes, orders, families, genera, and species would be determined by more specific shared characteristics.
5. To analyze and interpret data related to the diversity of animals, you could examine various shared characteristics among vertebrates and invertebrates. For example, all animals have eukaryotic cells without cell walls, exhibit heterotrophic nutrition, and reproduce sexually. You could look at anatomical structures, physiological processes, or genetic sequences to demonstrate the range of diversity within the animal kingdom while simultaneously highlighting the common characteristics connecting all animals together. By analyzing these shared traits across different groups of animals, the claim that all animals share common characteristics can be supported.