Multiple Choice
Collagen is best described as a n
A) intracellular matrix protein.
B) extracellular matrix protein and one of the earliest innovations observed in animals.
C) matrix protein that all animals have,with the exception of sponges.
D) intracellular matrix that is a basis for communication between cells.
Correct Answer:

Verified
Correct Answer:
Verified
Q2: Many eukaryotes have myosin 2,but only _
Q3: In tetrapods,the steroid hormone,aldosterone,plays a role in<br>A)mineral
Q4: Platyhelminthes can live without a circulatory or
Q5: Aldosterone is a steroid hormone that is
Q6: Which of the following is a parasitic
Q8: The most ancient deuterostomes are<br>A)annelids.<br>B)echinoderms.<br>C)mollusks.<br>D)arthropods.
Q9: Which of the following organisms are able
Q10: The Na+/K+ ATPase enables animal cells to
Q11: In fungi and plants<br>A)the cell wall controls
Q12: _ are often called extremophiles,because they can