Well and egg is not a specific species. What kind of egg are you talking about?
It all depends on the question. If you mean, which comes first, then, according to all scientific knowledge on evolution, the egg came first. There had to be a progenitor species that laid an egg. And that egg incurred a small mutation that resulted in a new species equivalent to the chicken. Then, the new chicken species hatched from the egg.
An embryo of any species, in an egg, feeds on the egg yolk.
Cloning is beneficial when an animal species or other organism species is becoming extinct. By cloning them, there will be more of them now, and enough of them to reproduce and naturally restore the population.
neiruw
A platypus is an egg laying mammal, or monotreme. Its actual species name is Ornithorhynchus anatinus.
You can eat it :)
Symbiosis is a close and long-term interaction between two different species. It can be mutualistic (beneficial to both species), commensalistic (beneficial to one species, neutral to the other), or parasitic (beneficial to one species, harmful to the other). Symbiotic relationships can involve various forms of interaction, such as mutualistic co-dependence or one organism living on or inside another organism.
to continue their species
It depends on the species.
Crossing over causes genetic diversity. If there was no genetic diversity in a species, the species would be prone to extinction.
Crossing over causes genetic diversity. If there was no genetic diversity in a species, the species would be prone to extinction.
Crossing over causes genetic diversity. If there was no genetic diversity in a species, the species would be prone to extinction.