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The end-cretaceous extinctions were followed by the . a. adaptive radiation of mammals and birds b. appearance of hard-shelled marine organisms c. appearance of first land plants d. insects?
The answer is a.
How are land mammals different from Sean mammals?
land mammals live on land, sea mammals live in the water.
When did mammals become land animals?
Mammals originated as land animals. Reptiles were the first vetebrates to have hard-shelled eggs and spend most of their time on land. Reptiles evolved into modern reptiles, mammals, and birds. Some mammals, since then, have moved partially or completely back into water.
What was princess daisy first appearance?
Super Mario land
According to scientists mammals made their first appearance during what period of the Mesozoic era?
Mammals made their first appearance during the Mesozoic era in the Triassic period. This period lasted from about 252 million years ago to 201 million years ago. Mammals evolved from their synapsid reptile ancestors during this time.
Are giraffe's land mammals?
Yes, giraffes are land mammals.
What major event in Earth's history happenend in the era we live in now?
The Ice Age. Domination of land by mammals. Appearance of apes and hominids.
What do you call mammals that live on land?
They are just called land mammals, or perhaps terrestrial mammals.
Why is there a much greater diversity of flying birds than there is of flying mammals?
Think of it as the same thing as land mammals versus water mammals. Marine mammals first evolved to life on land and then adapted to return to the water, but not all mammals did that. Similar thing with birds. All birds evolved from common flying ancestors, whereas flying mammals evolved from land mammals at a much later point in evolutionary history. Hope that helps.
What is the definition of mammals?
A land mammal is one that primarily lives on land, as opposed to in water, . They are also known are Terrestrial mammals. Typically a land mammal is fully adapted for life on land . Land mammals breed on land .Land mammals is not taxonomic category , it is ecological term .Bats which fly in air basically land mammals,as they go to air for a short time .
Is it true that the first mammals appeared on Earth at about the same time as the first terrestrial plants?
No. The first land plants were on the planet 0.475 billion years ago. The first mammals were on the planet around 160 million years.
What mammals do not live on land and do not lay eggs?
Marine mammals do not live on land, and no marine mammals lay eggs. Marine mammals include whales, dolphins and porpoises.
