Compare and contrast land plant communities of the Triassic and Jurassic with those of the

Cretaceous. What will be an ideal response?


The Triassic and Jurassic land flora were dominated by seedless vascular plants. The large seed
ferns were extinct by the end of the Triassic, but ginkgos were abundant and conifers continued
to diversify. Cycads arose in the Triassic. Angiosperms, true flowering plants, evolved in the
Cretaceous, and eventually arose to dominance.

Environmental & Atmospheric Sciences

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Which is NOT true about Celtic languages?

A) They were threatened by extinction in England. B) They are still spoken by people in France. C) They have been revived in some parts of the British Isles. D) They have an extensive body of literature. E) They share common language structure with Finnish and Hungarian.

Environmental & Atmospheric Sciences

Complex carbohydrates are a type of ____.

A. lipid B. chemical formula C. monomer D. protein E. organic polymer

Environmental & Atmospheric Sciences

A pediment is an erosional surface underlain by solid rock, while a bajada is depositional and is underlain by sediment.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

Linnaean classification ____

A)relies on phylogeny B)works well for all organisms C)reflects all evolutionary relationships D)is good for assigning organisms above the species level E)does not reflect evolutionary relationships in all cases

Environmental & Atmospheric Sciences