Answer:
Explanation:
Fertilization occurs when the nucleus of both a sperm and an egg fuse to form a diploid cell, known as zygote. The successful fusion of gametes forms a new organism.
The answer would be e. it would have released water in a volcanic outgassing. The planets were hot to have gas from the solar nebula. Earth,Mars as well as Venus then created their atmosphere through volcanic eruption and retain gases from comet and icy planetesimals vaporizing.
Characteristics of Lancelets:
Small
Elongated
Marine invertebrate
Lacks a jaw
No sense organs
Has a notochord
Example: Lamprey
Characteristics of Tunicates:
Marine invertebrate
Has an outer coat that is rubbery or hard
Has two siphons
Examples: sea squirts, salps
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