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Why are crayfish classified as protostomes?
Crayfish are classified as protostomes because they are a type of invertebrate animal that develops their mouth before their anus during embryonic development. This characteristic is a key feature of protostomes, which also includes other invertebrates like insects and mollusks.
What are the key differences between deuterostomes and protostomes in terms of their embryonic development and evolutionary significance?
Deuterostomes and protostomes are two major groups of animals with key differences in their embryonic development and evolutionary significance. In deuterostomes, the blastopore becomes the anus, while in protostomes, it becomes the mouth. This difference in embryonic development has important implications for the formation of body cavities and overall body plan. Evolutionarily, deuterostomes are considered more closely related to vertebrates, including humans, while protostomes include a diverse range of invertebrates. These distinctions in embryonic development and evolutionary relationships help scientists understand the diversity and relationships among different animal groups.
Are Porifera vertebrates or invertebrates?
Coral is an invertebrate, because it doesn't have a spine. Vertebrates do have spines. Invertebrates would be animals such as snails, worms, and sponges. Vertebrates would be animals such as monkeys, elephants, and anything else you can think of that has a spine.
How many times have wings for powered flight evolved in protostomes?
Wings for powered flight have evolved multiple times in protostomes, with the best-known example being in insects. Other protostomes that have evolved wings for powered flight include some groups of arthropods, such as butterflies and dragonflies.
Are flatworms prokaryote or eukaryote?
They are protostomes.
What groups can invertebrates be divided into?
Invertebrates can be divided into 5 groups. Insects Arachnids Crustaceans Worms Molluscs
Why are shells important to some invertebrates groups?
shells are important to some invertebrates groups because for some of them, that's their home
Are leeches protostomes?
Yes, since they are annelids, they are protostomes.
Are worms protostomes?
Most invertebrate animals are protostomes.
What two categories are animal divided?
you can put them in any groups, but the 2 main groups you are looking for are called = invertebrates and invertebrates (vertebrates have bones and invertebrates don't have any bones)
The distinction between protostomes and deuterostomes is based on differences in their?
The distinction between protostomes and deuterostomes is based on differences in their embryonic development. Protostomes develop their mouth first from the blastopore, while deuterostomes develop their anus first from the blastopore. This difference in early development leads to distinct patterns of development in the two groups.
What are the characteristics of 8 groups of invertebrates?
the 8 groups of invertebrates are the arthropods, poriferans, platyheminthes, coelenterates, nematoeds, mollusks, echinoderms, and annelids
