What are the walls of a ureter composed of?
a. skeletal muscle and mucous membrane.
b. mucous membrane and fibrous connective tissue.
c. mucous membrane, smooth muscle, and fibrous connective tissue.
d. skeletal muscle, fibrous connective tissue, and cartilage.
e. fibrous connective tissue, cartilage, and mucous membrane.

Can you identify which of the following groups of organisms are, or are not, populations? a. the american bison (bison bison) and grey wolves (canis lupus) currently living in yellowstone national parkb. all of the rainbow trout (oncorhynchus mykiss that) that have ever lived in lake eriec. the group of american bison (bison bison) currently living in yellowstone national parkd. a group of calliope hummingbirds (selasphorus calliope) and a group of rufous hummingbirds (selasphorus rufus) living in the same new hampshire woodse. the northern cardinals (cardinalis cardinalis) living on opposite shores of lake champlain f. all of the whales currently living in the atlantic ocean off cape cod, massachusetts

How do you date a sample of rock that you suspect as being one of the earliest on earth

What is the period of cell life when it is conducting