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Had the eggshells of either species returned to their original thickness by 1980?
Wiki User
∙ 10y ago
Eggshells are missionary intributed.
Anonymous
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When was Original of the Species created?
Original of the Species was created in 2004-11.
What book did Charles Darwin write after he returned to England?
"On the Origin of the Species"
How did dinosaurs make babies?
They mated like modern birds and some reptiles. Dinosaurs laid eggs, which had leathery eggshells. Some species of dinosaurs nursed their babies after hatching, some species let them hang out to dry after laying eggs.
Is the eagle endangered in Texas?
According to the Texas Status, Bald Eagles became an endangered species on March 11, 1967. The reason is that when these species were contaminated with DDT, they failed to lay eggs or produce thin eggshells that broke during incubation.
What book did Charles Darwin write when he returned back to England?
origin of species
How do you determine a plants age?
It often depends on the plant species. But for most species of trees it is often how many rings it has in its cell wall. For plant species all together it is often the thickness of the cell wall.
How many different species descended from the original bird species?
There are about 200 or more different species. Ur welcome!
How can the age of a plant be determined?
It usually depends on the plant species. But for most species of trees it is often how many rings it has in its cell wall or bottom of the trunk. For plant species all together it is often the thickness of the cell wall.
Where can you find original species of plants?
At their center of origin
What is mid-successional species?
Mid-successional species are plants and animals that grow after the original species die off. These plants and animals often are the first division of the original species that are created when cells are combined to form a stronger species.
How did bald eagle get endangered?
Use of the pesticide DDT caused problems with thin eggshells that would break during incubation. The banning of this chemical allowed the bald eagle's numbers to rebound nicely, to where they are no longer an endangered species.
What is an extinction species?
Extinct Species: The species no longer present in its original range or as a distinct species elsewhere.
