Select the correct text in the passage. Which sentence in the passage points out the similarity between parthenogenesis and sexual reproduction? Parthenogenesis is a type of reproduction that does not require a mate. It’s rarely seen in birds and higher vertebrates. Parthenogenesis involves the formation of a zygote. But this zygote is formed without fertilization. In parthenogenesis, in the absence of a male gamete, the ovum develops directly in the zygote.

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.