answersLogoWhite

0


Best Answer

Fish, birds, crocodiles, insects, lizards, amphibians, and pretty much anything that isn't a mammal or gives live birth.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

12y ago

monotremes

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What is the mammalian group that lacks a placenta?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What substance surrounds a developing mammalian embryo during gestation?

The placenta.


How does a mammalian fetus obtain nutrients?

through placenta attached to the uterine wall of the uterus via umbilical cord


Does an animal cell have a nucleus and oranelles?

Most do, some don't. A mammalian red blood cell lacks a nucleus.


Which type of eukaryotic cells lacks nucleus?

Mammalian red blood cells lack a nucleus.Seive tube elements lack a nucleus.


What is the imbilicord?

Umbilicord is a flexible cord like structure that contains blood vessels and attaching a human/other mammalian fetus to the placenta during gestation.


In most mammalian species which structure supplies food to the developing embryo?

The placenta is the part of the amniotic egg that supplies food to the developing animal. The yolk provides it with food, and the albumin supplies water and nutrients.The Yolk. Yolk is a sac that is attached to the embryo that supplies food.


What does non mammalian mean?

It means not mammalian


What is the largest group of mamanals?

The largest group of mammals are called placentals. These mammals are animals that during pregnancy have a placenta that feeds the incubating offspring.


What is the different between benzene and nitro benzene?

Nitrobenzene has a nitro group.Benzene lacks that group


Is Clarithromycin a sulfur drug?

Clarithromycin is not a sulfur or sulfa drug because it lacks the sulfonamide group. It is a drug in the group of macrolide antibiotics.


Which human blood group lacks proteins in the red blood cells?

Blood type O lacks the antigen proteins of A and B. Blood type O is the universal donor.


What type of mammal are monkeys?

Monkeys are in the placental group of mammals which means that they have an internal placenta for development of embryo.