The egg, 1st of all because there were eggs long before birds, but if you mean a chicken's egg then it is still the egg. This is because when a new species evolves, the egg is say, given birth to a sub-chicken, and the new species (chicken) is inside the egg, which is techically now a chicken's egg.
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.
My belief is that the egg came before the chicken. There was a bird ancestor to the modern chicken. Mutations (genetic changes) occur and the new characteristics show up in the chick in the egg. So the new, modern breeds are due to changes which show up in the egg, not in the parent bird.
Which came first, the chicken or the egg? The answer is, of course, the egg. After all, birds evolved long after egg-laying reptiles, so eggs had to have come first. But what exactly does that have to do with forward declarations? Well, everything, as it turns out. Forward declarations are essential whenever two classes depend on each other.As you know, in C++ you must define a type before you can use it. So let's define a simple chicken and egg:#include class Chicken{public:Chicken(Chicken* parent=0):m_pParent(parent){}Egg* lay_egg();private:Chicken* m_pParent;};class Egg{public:Egg(Chicken* parent=0): m_pParent(parent){}Chicken* hatch();private:Chicken* m_pParent;};Egg* Chicken::lay_egg(){return(new Egg(this));}Chicken* Egg::hatch(){return(new Chicken(m_pParent));}int main(){Chicken chicken;Egg* egg = chicken.lay_egg();Chicken* chick = egg->hatch();Egg* egg2 = chick->lay_egg();delete(egg2);egg2=0;delete(chick);chick=0;delete(egg);egg=0;return(0);}Straight away there's a problem. The compiler won't allow this because our chicken lays eggs but the definition of an egg appears after the definition of a chicken. Ah, but of course -- eggs came first! So let's swap the definitions around:#include class Egg{public:Egg(Chicken* parent=0): m_pParent(parent){}Chicken* hatch();private:Chicken* m_pParent;};class Chicken{public:Chicken(Chicken* parent=0):m_pParent(parent){}Egg* lay_egg();private:Chicken* m_pParent;};Egg* Chicken::lay_egg(){return(new Egg(this));}Chicken* Egg::hatch(){return(new Chicken(m_pParent));}int main(){Chicken chicken;Egg* egg = chicken.lay_egg();Chicken* chick = egg->hatch();Egg* egg2 = chick->lay_egg();delete(egg2);egg2=0;delete(chick);chick=0;delete(egg);egg=0;return(0);}Hmm. The compiler's still not happy. Our eggs need to hatch chickens but, again, the definition of a chicken now appears after the definition of an egg. We seem to have a catch-22 situation. No matter which order we define them, we simply cannot emulate a simple chicken and an egg.The answer is, you guessed it, to use a forward declaration:#include class Chicken; // forward declaration!class Egg{public:Egg(Chicken* parent=0): m_pParent(parent){}Chicken* hatch();private:Chicken* m_pParent;};class Chicken{public:Chicken(Chicken* parent=0):m_pParent(parent){}Egg* lay_egg();private:Chicken* m_pParent;};Egg* Chicken::lay_egg(){return(new Egg(this));}Chicken* Egg::hatch(){return(new Chicken(m_pParent));}int main(){Chicken chicken;Egg* egg = chicken.lay_egg();Chicken* chick = egg->hatch();Egg* egg2 = chick->lay_egg();delete(egg2);egg2=0;delete(chick);chick=0;delete(egg);egg=0;return(0);}Now the code compiles!The forward declaration simply acts as a sort of place-holder. We're just telling the compiler that although we aren't quite ready to define a chicken, one will be defined at some point -- it may even be in a completely different file. But that is enough to appease the compiler, it can simply fill in the blanks when our chicken is fully defined.This type of scenario crops up quite a lot, especially when working with parent and child classes that must depend on each other, just like our chicken and egg. However, we normally design our classes using separate source files each with their own header file, and that would then make it impossible for our chicken and egg header's to include each other's header. Instead, we must use forward declarations in the headers, and place the corresponding #include directives in the source files.
i think it is?
The chicken came first. Why? The chicken came first because the actual chicken evolved from an ancestor, the Archaeopteryx. Actually many birds evolved from this magnificent bird. Then the chicken lays the egg and so on.
long time ago, two organisms(not hen and cock) combined and one cell(egg) was formed. when the new organism came out, it was a new specie. then according to wittekar's evolution theory, i.e. like humans were first apes and then became a true humans the new specie also became a chick (present chick)since egg is of one cell it came first.hence, an egg came first than the chick.
This, in practice, is like the chicken and the egg question e.g. which came first the chicken of the egg. Every single day new and interesting ( to someone) technology reaches and then travels through the research and development stages.
Basically, many, many moons ago there was a chicken-like bird. It was genetically close to a chicken but wasn't a full-blown chicken yet. The video calls it a proto-chicken. So proto-hen laid an egg, and proto-rooster fertilized it. But when the genes from ma and pa almost-chicken fused, they combined in a new way, creating a mutation that accidentally made the baby different from its parents. Although it would take millennia for the difference to be noticed, that egg was different enough to become the official progenitor of a new species, now known as... the chicken! So in a nutshell (or an eggshell, if you like), two birds that weren't really chickens created a chicken egg, and hence, we have an answer: The egg came first, and then it hatched a chicken. Maybe the question we should be asking is: Which came first, the proto-chicken or the proto-chicken egg?
White chicken chili origins are unknown. Many people love to make new recipes for chili all over the world.
Here's a way to help you remember this: all eggs are the same, even plant eggs. Think about a chicken egg, like the ones you cook for breakfast. The egg is inside a shell, right? The plant egg is inside a shell too, only sometimes the shell is soft and tasty and called a fruit. Plant eggs grow into seeds, which then grow into new plants, just like a chicken egg would hatch into a baby chicken if a hen sits on it and keeps it warm. Leaves and stems are just parts of the plant, and not part of sexual reproduction - like the chicken's feathers and beak.
This is a very interesting question and can bring about a good philosophical discussion. In my opinion, the chicken came first. The reason being, there was a study performed that determined that eggs can only come from a protein found in a chicken's ovaries, therefore, the chicken had to come first.