https://www.khanacademy.org/science/revision-term-1-ka-biology-grade-11/x1474e0ca4285b2f5:week-1/x1474e0ca4285b2f5:plant-kingdom/v/pteridophytes 2023-02-04T23:01:02.978880581Z Pteridophytes In this video, we talk all about pteridophytes: the first plants ever to have vascular tissues! We take a closer look at their life cycle and find out why they are the “in-between version” of bryophytes and higher plants. Sulagna Das video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Pteridophytes In this video, we talk all about pteridophytes: the first plants ever to have vascular tissues! We take a closer look at their life cycle and find out why they are the “in-between version” of bryophytes and higher plants. https://cdn.kastatic.org/ka-youtube-converted/sCLTyZHbVpk.mp4/sCLTyZHbVpk.mp4 322 Life cycles of plants and animals https://www.khanacademy.org/science/biology/cellular-molecular-biology/meiosis/a/sexual-life-cycles 2021-04-29T07:55:05Z Sexual life cycles Types of sexual life cycles: diploid-dominant, haploid-dominant, and alternation of generations. article https://www.khanacademy.org/science/revision-term-2-tg-biology-class-8/x04828215b460a495:week-3/x04828215b460a495:reproduction-in-animals/e/viviparous-and-egg-bearing-animals 2026-04-10T12:00:44.946307725Z Viviparous and egg-bearing animals Let's solve some questions on Viviparous and egg-bearing animals Vibhor Pandey exercise https://www.khanacademy.org/science/ka-science-grade-6/x12c13c153ec99496:living-creatures-exploring-their-characteristics/x12c13c153ec99496:life-cycles/v/life-cycle-of-a-plant 2025-07-29T05:36:54.892165612Z Life Cycle of a Plant How does a tiny seed grow into a plant—and back into seeds? This video explains the life cycle of a plant step by step: germination, growth, flowering, pollination, fertilisation, and fruit formation. Bitasta Datta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Life Cycle of a Plant How does a tiny seed grow into a plant—and back into seeds? This video explains the life cycle of a plant step by step: germination, growth, flowering, pollination, fertilisation, and fruit formation. https://cdn.kastatic.org/ka-youtube-converted/7T2DzHUtqKo.mp4/7T2DzHUtqKo.mp4 232 Life cycles of plants and animals https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:living-creatures-exploring-their-characteristics/e/life-cycle-of-a-plant 2026-04-20T07:20:46.893989224Z Life Cycle of a Plant In this exercise, students explore the fascinating journey of a plant's life — from a tiny seed to a mature plant that flowers, fruits, and eventually dies, completing its life cycle. Bitasta Datta exercise https://www.khanacademy.org/science/revision-term-2-tg-biology-class-8/x04828215b460a495:week-3/x04828215b460a495:reproduction-in-animals/v/life-cycle-of-frog 2025-07-29T05:36:54.892165612Z Life Cycle of Frog Discover the transformation of a frog—from squishy spawn to tail-wiggling tadpole to full-grown hopper. Bitasta Datta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Life Cycle of Frog Discover the transformation of a frog—from squishy spawn to tail-wiggling tadpole to full-grown hopper. https://cdn.kastatic.org/ka-youtube-converted/Q_mpfkhVIOY.mp4/Q_mpfkhVIOY.mp4 248 Life cycles of plants and animals https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:living-creatures-exploring-their-characteristics/e/life-cycle-of-a-frog 2026-04-15T04:20:43.780498197Z Life Cycle of a Frog Get ready to jump into the life of a frog — from squishy eggs to hopping adults. Bitasta Datta exercise https://www.khanacademy.org/science/ka-science-grade-6/x12c13c153ec99496:living-creatures-exploring-their-characteristics/x12c13c153ec99496:life-cycles/v/life-cycle-of-mosquito 2025-07-29T05:36:54.892165612Z Life Cycle of Mosquito Discover the transformation of a mosquito—from eggs in water bodies to wriggling larvae to full-grown adults. Bitasta Datta video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Life Cycle of Mosquito Discover the transformation of a mosquito—from eggs in water bodies to wriggling larvae to full-grown adults. https://cdn.kastatic.org/ka-youtube-converted/W8kmyIcoV2Y.mp4/W8kmyIcoV2Y.mp4 224 Life cycles of plants and animals https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:living-creatures-exploring-their-characteristics/e/life-cycle-of-mosquitoes 2026-06-01T10:10:43.143771843Z Life Cycle of Mosquitoes Mosquitoes — those tiny buzzing creatures we swat at all the time — actually lead quite a fascinating life before they come anywhere near your skin. This exercise dives into the 4-stage life cycle of a mosquito: egg, larva, pupa, and adult — and how this cycle links directly to health, environment, and prevention. Bitasta Datta exercise https://www.khanacademy.org/science/class-7-science/x0c8b40bd4b242f0b:fiber-to-fabric-7th/x0c8b40bd4b242f0b:silk-life-cycle-of-the-silkworm-and-obtaining-silk/v/life-cycle-of-silkworm-middle-school-science-khan-academy 2025-01-14T13:46:46.197485586Z Life Cycle of Silkworm Discover the fascinating life cycle of the silkworm in this detailed video! From the female silk moth laying eggs to the transformation of larvae into caterpillars, and their creation of protective silk cocoons, we unravel every stage of this mesmerizing process. Watch as the pupa develops inside the cocoon, eventually emerging as an adult moth, ready to restart the cycle. Learn how this process contributes to the production of the luxurious silk fabric we all admire. Shankar Nair video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Life Cycle of Silkworm Discover the fascinating life cycle of the silkworm in this detailed video! From the female silk moth laying eggs to the transformation of larvae into caterpillars, and their creation of protective silk cocoons, we unravel every stage of this mesmerizing process. Watch as the pupa develops inside the cocoon, eventually emerging as an adult moth, ready to restart the cycle. Learn how this process contributes to the production of the luxurious silk fabric we all admire. https://cdn.kastatic.org/ka-youtube-converted/6Qho_OihVxA.mp4/6Qho_OihVxA.mp4 309 Life cycles of plants and animals https://www.khanacademy.org/science/revision-term-1-ka-science-class-7/x05832cca8e86a1ef:week-1/x05832cca8e86a1ef:fibre-to-fabric/e/life-cycle-of-silkworm 2026-04-08T01:15:04.085520103Z Life Cycle of Silkworm Lets answer some questions! Shankar R exercise