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प्रश्न
List the features that all vertebrates show at some point in their development.
उत्तर
All vertebrates possess notochord during an embryonic stay. The notochord is replaced by the vertebral column. All vertebrates possess pained appendages such as fins or limbs. Skin is covered by protective skeleton comprising of scales. feathers, hairs, claws, nails etc. Respiration is aerobic through gills, skin. buccopharyngeal cavity and lungs. All vertebrates have a muscular heart with two, three or four chambers and kidneys for excretion and osmoregulation.
संबंधित प्रश्न
“All vertebrates are chordates but all chordates are not vertebrates.” Justify the statement.
How important is the presence of air bladder in Pisces?
What are the modifications that are observed in birds that help them fly?
Could the number of eggs or young ones produced by an oviparous and viviparous mother be equal? Why?
The limbless amphibian is ______.
Four chambered heart is present in ______.
Which of the following is not correctly paired?
Pneumatic bones are seen in ______.
List three features that characterise bony fishes.
List the functions of air bladder in fishes.
Write the characteristics that contributes to the success of reptiles on land.
List the unique features of bird’s endoskeleton.
Which of the following is NOT a character of Chordata?
Give three major differences between chordates and non-chordates and draw a schematic sketch of a chordate showing those features.
