[12(C)
(C) निर्गत कोण
(D) इनमें से काइ नहा
13. 1 मीटर फोकस दूरी वाले उत्तल लेंस की क्षमता होगी
(A) - 10
(B) 1D
(C) 2D
(D) 1.5D
उत्तर-(B)
Answers
Explanation:
DIFFERENCES:
1) Vertebrates have a backbone or spinal column, have an internal skeleton made of bone, an advanced nervous system with a developed brain and have outer covering of protective cellular skin.
Invertebrates have no backbone, no cell walls. They are heterotrophic.
Because of developed brains, vertebrates have better and faster understanding than invertebrates.
2) Examples of vertebrates are humans, primates (gorillas, monkeys, orang-utans), marsupials (kangaroo, koala), reptiles (crocodiles, lizards, snakes), birds, seals, dolphins, mammals. Examples of invertebrates are insects, flatworms, jellyfish, flies.
3) Vertebrates are stronger, faster and mostly bigger than the invertebrates. Invertebrates tend to be small and slow moving.
4) 2% of animal species are vertebrates. Rest 98% are invertebrates.
5) There are 57,739 species of vertebrates. In comparison, there are 2 million species of invertebrates that have been identified . More remain to be identified.
6) Vertebrates have only bilateral symmetry. Invertebrates have bilateral or radial symmetry.
7) Vertebrates are classified into 5 groups; invertebrates into 30 phyla.
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Originally Answered: What is the difference between vertebrate and invertebrate animals?
Vertebrates have internal skeletons, i.e. bones. Invertebrates don't. Some, the insects, have external skeletons, made of chitin; others, like crustaceans, have shells and molluscs; some, like jellyfish and octopuses, don't have an exoskeleton. Of course, invertebrates include the single-celled animals.
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Following are some of the major differences between vertebrate and invertebrate such as:
1. Vertebrates have spinal cord with backbone but, whereas we could not find it in invertebrates.
2. Diversity is exceptionally high among invertebrates compared to vertebrates.
3. Vertebrates are bilaterally symmetrical, but invertebrates could show either bilateral or symmetry.
4. Generally, vertebrates are large bodied and so move fast compared to invertebrates.
5. Vertebrates have closed blood system, well developed brain, and have either gills or lungs for respiration.
6. Finally, invertebrates are more adaptive due to simplicity but, whereas the vertebrates are not able to adapt because of the specialization.
Answer:
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