0
Prototherians are a small group of mammals that still lay eggs. They are thought to be the most ancestral form of the class Mammalia.
Wiki User
∙ 9y ago
Add your answer:
Earn +20 pts
What other subclasses are there for mammals?
The 3 subclasses of mammals are monotremes, marsupials and placental mammals.
Why aren't reptiles mammals?
Mammals have hair and nurse their young. That's what makes them mammals.
Do mammals have jaws?
Yes mammals has jaws ,a dog has jaws lions has jaws and they are both mammals.
Do sharks have nipples?
no thay are fish Only mammals have nipples
Is a Sumatran elephant a mammal or a reptile?
No, they're mammals.
What are some environments that placental mammals live on?
Placental mammals live in almost every environment on Earth. They are one of the most successful groups in the animal kingdom. Mammals in general are very successful and the majority of mammals are placentals. This group is so successful because they are endothermic. The only mammals that are not placentals are the marsupials (kangaroo, opossum, etc) and the prototherians (egg laying mammals). Environments that do contain mammals would likely be constrained to those that are very severe: The deep ocean, extremely high mountain peaks, etc. Otherwise you can find these animals almost anywhere.
Is 'yet' used with finished or unfinished time phrases?
Unfinished.
When was An Unfinished Journey created?
An Unfinished Journey was created in 1986.
When was The Unfinished Revolution created?
The Unfinished Revolution was created in 2001.
When was An Unfinished Race created?
An Unfinished Race was created in 1873.
When was The Unfinished Symphony created?
The Unfinished Symphony was created in 2005.
When was Unfinished Tales created?
Unfinished Tales was created in 1980.
When was Unfinished Revolution created?
Unfinished Revolution was created in 1987.
When was Unfinished Sympathy created?
Unfinished Sympathy was created in 1990.
When was Unfinished Picture created?
Unfinished Picture was created in 1973.
How many syllables in unfinished?
There are 3 syllables in the word unfinished
What is opposite of unfinished?
The opposite (or antonym) of "unfinished" is "complete" or "finished."
