... >> Natural Science >> Zoology >> Ectolecithal
Highest Rated Sign
Nobody has posted a sign yet.
Definition: Yolk for nutrition of the embryo contributed by cells that are separate from the egg cell and are combined with the zygote by envelopment within the eggshell.
Source: Hickman, C.P., et al. 2011. Integrated Principles of Zoology. Fifteenth Edition. McGraw-Hill Higher Education.