Which of the following is not a general characteristic of Mammals?

Many primates posses __________ thumbs and toes, which means they can touch all the other digits.

In the Subphylum Vertebrata, this organ excretes nitrogenous waste products and regulates water balance:

This reptile has a 4-chambered heart and parents care for their young.

The ability to walk upright on two feet is known as:

Bears belong to which Order of Mammals:

Kangaroos belong to which of the following categories of Mammals?

Birds have __________ circulation through the lungs, which allows for continuous oxygenation of blood.

Caeciillians belong to this Order of Amphibians

This group was the first Homonids to use fire: