Question

Which characteristic is common to all three groups of mammals? They require little or no parental care. They develop partially or fully inside the mother’s body. They have long gestation periods. They are always endotherms.

Answer 1

They develop partially or fully inside the mother's body. They have long gestation periods. Which characteristic is common to all three groups of mammals? They are always endotherms.

Step-by-step explanation:

Answer 2

They develop partially or fully inside the mother's body. They have long gestation periods. Which characteristic is common to all three groups of mammals? They are always endotherms.

Step-by-step explanation: