Affiliate Marketing Secrets

A) Triassic
B) Permian
C) Jurassic
D) Cretaceous
The largest mass extinction of the Paleozoic Era was:
A) at the end of the Cretaceous
B) at the end of the Permian
C) at the middle of the Jurassic
D) extinctions never happened

Hypotheses of Fungi Evolution:
One hypothesis proposes that aquatic fungi evolved from ancestral flagellates (choanoflagellates) that we still find in extant protist species. The problem is in explaining that fungi are osmotrophs like bacteria and yet were flagellate like other eukaryotes before becoming terrestrial. The only remaining aquatic fungi are the Chytrids that still have flagellated spores, so are considered the most basal group extant. This indicates fungi branched before phagocytosis evolved and after sexual reproduction with motile gametes.
Eukaryotes clearly went in three trophic niches
Auto-phototrophs – algae and plants
Osmo-heterotrophs – absorbing heterotrophs – mycetozoa and fungi
Phago-heterotrophs – engulphing or ingesting heterotrophs – protozoa and animals
Microbial Phylogeny and Evolutionhttp://books.google.com/books?id=SMvLpiK…http://books.google.com/books?id=ANT8VB1…http://faculty.college-prep.org/~bernie/…http://www.sciencedaily.com/releases/200…
Choanoflagellates relate to metazoan choanocyte collar cells in sponges, and the origins of animal multicellularity and possibly fungal also.http://onlinelibrary.wiley.com/doi/10.11…http://www.wisegeek.com/what-are-choanof…http://www.tolweb.org/Choanoflagellateshttp://books.google.com/books?id=-GyARby…

I think not. Mammals and dinosaurs appeared the same time ( late Triassic). And where both pretty small. Go to the Cretaceous and dinosaurs had came in many DIFFERNT sizes varieties and basically filled every ecology niche. The mammals where still unchanged. All of them where about the size of a mouse and only ate insects. After the dinosaur wen t extinct that when we say mammals become DIFFERNT vartites and started to change size. I think if the dinosaurs never went extinct they would still be the apex organism.
Dinosaurs and ancie t reptiles filled every ecological niche mammals do now. (pilosaurs for dolphins and whales) ( raptors for wolfs and lions) ( small tree dwelling dinosaurs for squirrels and rodents) etc erc Not to mention no mammals has really reached the size of any dinosaurs. Short face bear the largest mammalian predator that ever existed was tiny compared to the 60 foot long spinosaurs. Basically what I’m trying to say if dinosaurs never gone extinct us humans and many other mammals would not had even evolved. And we still be the same size of a mouse.

I think not. Mammals and dinosaurs appeared the same time ( late Triassic). And where both pretty small. Go to the Cretaceous and dinosaurs had came in many DIFFERNT sizes varieties and basically filled every ecology niche. The mammals where still unchanged. All of them where about the size of a mouse and only ate insects. After the dinosaur wen t extinct that when we say mammals become DIFFERNT vartites and started to change size. I think if the dinosaurs never went extinct they would still be the apex organism.
Dinosaurs and ancie t reptiles filled every ecological niche mammals do now. (pilosaurs for dolphins and whales) ( raptors for wolfs and lions) ( small tree dwelling dinosaurs for squirrels and rodents) etc erc Not to mention no mammals has really reached the size of any dinosaurs. Short face bear the largest mammalian predator that ever existed was tiny compared to the 60 foot long spinosaurs. Basically what I’m trying to say if dinosaurs never gone extinct us humans and many other mammals would not had even evolved. And we still be the same size of a mouse.