How many of our planets creatures have green blood?
457241
Five small species of skinks (lizard-like creatures) with green blood found on Papua New Guinea are the only green-blooded land vertebrates in the world.\n\nProbably there are more sea animals or more primitive land animals as well.\n\nAnother curiosity is "blue blood" I remember from my childhood that octopuses have 3 hearts and blue blood
885448
why is the grass green?
228915
Lobster Blood is transparent or white, but because Copper is used to transport oxygen around their bodies (whereas humans use Iron), oxygenated blood is slighty blue.
432280
The Planet I live on and the animals I see and hear!!!
395555
liver and green leafy veg.
556954
there are nine planets in the solar system. it is not know yet how many planets are there in the entire universe, because we just know about 3 galaxies (and still do not know about any planets in galaxies other than the milky way)
339049
Chlorophyll is a green pigment and this gives the color to the grass and other plants.
408320
Very niave!  We have been shown that there are other living organisms on other planets that we have have snet out to study.  Just because they are not in human or (our) peoples form does not mean that the planet is not alive. We have also been shown to where some planets have shown previous life on them.
165445
there are 7241.00098723 earths. Period.
406086
Males have up to 6 units of blood and females have up 5 units of blood, but I think that is all humans, not just Americans. HA HA HA HA !!
1172341
What a boring world this would be if we all looked alike. I wish there were more colors of skin to look at. Pink skin, blue skin, green skin, rainbow skin, violet and purple would be wonderful. Lets celebrate our differences and enjoy diversity. Look at all the different kinds of creatures on this Earth. There are so many species, we have't found them all yet. We can look forward to people from other planets looking different than just skin color. Wouldn't we forget about our colors then?
1139774
That would be absolutely impossible to answer with an exact number.  First, if you mean insect species, there are many that are undiscovered.  If you mean absolute total number of every insect, well, I don't know that anyone could even come close to a real estimate, let alone an actual number.
984374
Well, that depends.  There is evidence of algae at 3.5 billion, probably photosythetic cells by 2.0, and clear plants by 400 million.  With a 4.6 billion year old earth, that's 76%, 43%, or 8.7% of the time.
715856
Who on God's green earth are you talking about?
604824
The astrobiology folks at NASA have calculated that there are between one and thirty billion habitable planets in our Milky Way Galaxy.  If our solar system is typical,  you can multiply that by about 10 to get total planets: between 10 and 300 billion.  \n\nSo where is everybody?
7302
Do you really mean plants? If so there are quite a few.\nIf you meant planets then most people say 9, although there is a big controversy about what makes something a planet. We have discovered another named Sedna and a couple more that may eventually be called planets.
1001302
Density of bird blood is approximately 1.05