https://www.khanacademy.org/science/revision-term-1-ka-biology-grade-11/x1474e0ca4285b2f5:week-1/x1474e0ca4285b2f5:animal-kingdom/v/chordates 2024-03-20T04:30:00.686269804Z Chordates What makes chordates like humans and fishes unique? How are humans different from fishes? Watch this video to learn the different categories and features of chordates. Nivedhitha Suresh video https://cdn.kastatic.org/ka_thumbnails_cache/a71b0b62-9c5c-442c-8120-82cf86a13753_1280_720_base.png Chordates What makes chordates like humans and fishes unique? How are humans different from fishes? Watch this video to learn the different categories and features of chordates. https://cdn.kastatic.org/ka-youtube-converted/8IYUZH8dzLc.mp4/8IYUZH8dzLc.mp4 502 Vertebrates and invertebrate animals https://www.khanacademy.org/science/als-k-to-12-science/x46c2fc9f8e023990:2nd-quarter/x46c2fc9f8e023990:classifying-animals-structure-diet-habitat-and-reproduction/e/chordata 2026-04-08T01:15:04.085520103Z Chordata This exercise is on the distinguishing features of Chordates, and the differences between different classes of vertebrates. Moumita Sen exercise https://www.khanacademy.org/science/revision-term-1-ka-biology-grade-11/x1474e0ca4285b2f5:week-1/x1474e0ca4285b2f5:animal-kingdom/v/phylum-porifera 2023-04-19T21:14:29.759927248Z Phylum Porifera Let's learn about sponges - the animals that belong to the phylum Porifera. Moumita Sen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Phylum Porifera Let's learn about sponges - the animals that belong to the phylum Porifera. https://cdn.kastatic.org/ka-youtube-converted/u5Qz9-iCZoY.mp4/u5Qz9-iCZoY.mp4 620 Vertebrates and invertebrate animals https://www.khanacademy.org/science/revision-term-1-ka-biology-grade-11/x1474e0ca4285b2f5:week-1/x1474e0ca4285b2f5:animal-kingdom/v/phylum-cnidaria 2023-04-21T10:41:47.588914293Z Phylum Cnidaria Come find out about the phylum Cnidaria - jellyfish, hydra, and more! Moumita Sen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Phylum Cnidaria Come find out about the phylum Cnidaria - jellyfish, hydra, and more! https://cdn.kastatic.org/ka-youtube-converted/LjaS-XY1gbE.mp4/LjaS-XY1gbE.mp4 609 Vertebrates and invertebrate animals https://www.khanacademy.org/science/6th-grade-science-matatag/x1c42f0f13f909d5b:2nd-quarter/x1c42f0f13f909d5b:vertebrates-and-invertebrate-animals/v/phylum-arthropoda-part-1 2023-05-03T21:01:13.225276573Z Phylum Arthropoda - part 1 Let's look at the general characteristics and the respiratory organs of the members of the phylum Arthropoda. Moumita Sen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Phylum Arthropoda - part 1 Let's look at the general characteristics and the respiratory organs of the members of the phylum Arthropoda. https://cdn.kastatic.org/ka-youtube-converted/KbVX6Mb9dKQ.mp4/KbVX6Mb9dKQ.mp4 346 Vertebrates and invertebrate animals https://www.khanacademy.org/science/6th-grade-science-matatag/x1c42f0f13f909d5b:2nd-quarter/x1c42f0f13f909d5b:vertebrates-and-invertebrate-animals/v/phylum-platyhelminthes 2023-05-02T06:33:07.024761773Z Phylum Platyhelminthes Find out about tapeworms and more. Moumita Sen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Phylum Platyhelminthes Find out about tapeworms and more. https://cdn.kastatic.org/ka-youtube-converted/ZL6s3qMJruk.mp4/ZL6s3qMJruk.mp4 469 Vertebrates and invertebrate animals https://www.khanacademy.org/science/als-k-to-12-science/x46c2fc9f8e023990:2nd-quarter/x46c2fc9f8e023990:classifying-animals-structure-diet-habitat-and-reproduction/e/vertebrates-up 2026-04-08T00:16:02.937952483Z Vertebrates Vertebrates Moumita Sen exercise https://www.khanacademy.org/science/cambridge-o-level-biology-cie/x2a084a90105205d2:classification/x2a084a90105205d2:features-of-organisms/e/vertebrates 2026-04-08T00:54:09.631945657Z Vertebrates This exercise tests the salient features of vertebrates and the differences between Chondrichthyes, Osteichthyes, Amphibia, Reptilia, Aves, and Mammalia. Moumita Sen exercise