Yes.
By the way, if you're going to use answers.com to cheat on a test at least paraphrase the question or something, copy-pasting the question and just taking out the blank between "developed" and "?" is simply lazy. Seriously, would it kill you to add "what" before the question mark?
Yes. They usually have flowers.
Angiosperms They produced seeds that are protected they are the most diverse and abundant land plants today. Present day angiosperms that evolved during the mesozic era include magnolia and oak trees.
About 250000 of them have been found.
When the Earth first formed, there was an abundant amount of deuterium in the atmosphere. Today, most of the deuterium has fused into helium and because of that, there is little deuterium left.
There are no living direct ancestors of dinosaurs, but dinosaurs are a branch of reptilian life which are abundant today.
Earth Day in 2011 falls on Friday, April 22, 2011.
Most seed plants today belong to the plant division. There are two groups in the plant division which include angiosperms and gymnosperms.
Angiosperms They produced seeds that are protected they are the most diverse and abundant land plants today. Present day angiosperms that evolved during the mesozic era include magnolia and oak trees.
Precambrian
Oxygen
The air mostly consists of nitrogen. :)
shrubs ferns
About 250000 of them have been found.
When the Earth first formed, there was an abundant amount of deuterium in the atmosphere. Today, most of the deuterium has fused into helium and because of that, there is little deuterium left.
Angiosperm
Extinct
They are extinct
extinct