• Amphibians need water to lay eggs and fertilization is external. Reptilians do not need water to lay eggs and fertilization is internal. • Amphibians use both skin and lungs for breathing. Reptilians breathe through lungs only. For more answers visit to website: https://www.tiwariacademy.com/ncertRead more
• Amphibians need water to lay eggs and fertilization is external. Reptilians do not need
water to lay eggs and fertilization is internal.
• Amphibians use both skin and lungs for breathing. Reptilians breathe through lungs only.
Segmented body in annelids, while true segmentation is absent in arthropods. Arthropods have joined appendages, which are absent in annelids. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-7/
Segmented body in annelids, while true segmentation is absent in arthropods. Arthropods have
joined appendages, which are absent in annelids.
In porifera, body has numerous pores, which are absent in coelenterates. Body has a cavity in coelenterates, while it is absent in porifera. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-7/
In porifera, body has numerous pores, which are absent in coelenterates. Body has a cavity in
coelenterates, while it is absent in porifera.
Seeds are naked in gymnosperms, while they are covered in angiosperms. Gymnosperms do not bear flowers, while angiosperms bear flowers. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-7/
Seeds are naked in gymnosperms, while they are covered in angiosperms. Gymnosperms do not
bear flowers, while angiosperms bear flowers.
In pteridophytes, the reproductive organs are hidden and they do not produce seeds. In phaenrogams, the reproductive organs are conspicuous and they produce seeds. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-7/
In pteridophytes, the reproductive organs are hidden and they do not produce seeds.
In phaenrogams, the reproductive organs are conspicuous and they produce seeds.
What are the differences between amphibians and reptiles?
• Amphibians need water to lay eggs and fertilization is external. Reptilians do not need water to lay eggs and fertilization is internal. • Amphibians use both skin and lungs for breathing. Reptilians breathe through lungs only. For more answers visit to website: https://www.tiwariacademy.com/ncertRead more
• Amphibians need water to lay eggs and fertilization is external. Reptilians do not need
water to lay eggs and fertilization is internal.
• Amphibians use both skin and lungs for breathing. Reptilians breathe through lungs only.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-7/
How do annelid animals differ from arthropods?
Segmented body in annelids, while true segmentation is absent in arthropods. Arthropods have joined appendages, which are absent in annelids. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-7/
Segmented body in annelids, while true segmentation is absent in arthropods. Arthropods have
joined appendages, which are absent in annelids.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-7/
How do poriferan animals differ from coelenterate animals?
In porifera, body has numerous pores, which are absent in coelenterates. Body has a cavity in coelenterates, while it is absent in porifera. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-7/
In porifera, body has numerous pores, which are absent in coelenterates. Body has a cavity in
coelenterates, while it is absent in porifera.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-7/
How do gymnosperms and angiosperms differ from each other?
Seeds are naked in gymnosperms, while they are covered in angiosperms. Gymnosperms do not bear flowers, while angiosperms bear flowers. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-7/
Seeds are naked in gymnosperms, while they are covered in angiosperms. Gymnosperms do not
bear flowers, while angiosperms bear flowers.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-7/
How are pteridophytes different from the phanerogams?
In pteridophytes, the reproductive organs are hidden and they do not produce seeds. In phaenrogams, the reproductive organs are conspicuous and they produce seeds. For more answers visit to website: https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-7/
In pteridophytes, the reproductive organs are hidden and they do not produce seeds.
In phaenrogams, the reproductive organs are conspicuous and they produce seeds.
For more answers visit to website:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-7/