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Cellulose is the chemical name for the fiber found in fruits and vegetables. Cellulose is similar in structure to starch. It is most likely that humans can digest starch but not cellulose because
cell A is communicating with cell B
humans have enzymes to break down starch, but not cellulose
2
2
survived based on the adaptations that they had to the new environment
the size of the DNA fragments produced
Cromwell current bringing food up to the surface from deeper in the ocean
A specific enzyme would no longer be made.
The finches of the Galapagos Islands likely came from a few birds that were able to fly there from Ecuador about two to three million years ago. Once the finches reached the islands, some
cell A is communicating with cell B
humans have enzymes to break down starch, but not cellulose
2
2
survived based on the adaptations that they had to the new environment
the size of the DNA fragments produced
Cromwell current bringing food up to the surface from deeper in the ocean
A specific enzyme would no longer be made.
What is a possible result of the change shown in the diagram?
cell A is communicating with cell B
humans have enzymes to break down starch, but not cellulose
2
2
survived based on the adaptations that they had to the new environment
the size of the DNA fragments produced
Cromwell current bringing food up to the surface from deeper in the ocean
A specific enzyme would no longer be made.
Of all penguin species, the Galapagos penguin lives in the warmest climate. Which statement describes a behavioral adaptation that would allow these penguins to be successful in their warm environment?
cell A is communicating with cell B
humans have enzymes to break down starch, but not cellulose
2
2
survived based on the adaptations that they had to the new environment
the size of the DNA fragments produced
Cromwell current bringing food up to the surface from deeper in the ocean
A specific enzyme would no longer be made.
The amino acid sequence of four species, Bc, X, Y, and Z, were compared to determine their evolutionary relationship. Based on the amino acid sequence below, identify the evolutionary tree that best represents the relationship between the species.
cell A is communicating with cell B
humans have enzymes to break down starch, but not cellulose
2
2
survived based on the adaptations that they had to the new environment
the size of the DNA fragments produced
Cromwell current bringing food up to the surface from deeper in the ocean
A specific enzyme would no longer be made.
The process represented in the diagram indicates that
cell A is communicating with cell B
humans have enzymes to break down starch, but not cellulose
2
2
survived based on the adaptations that they had to the new environment
the size of the DNA fragments produced
Cromwell current bringing food up to the surface from deeper in the ocean
A specific enzyme would no longer be made.
The differing rates of migration of DNA fragments in a gel electrophoresis procedure is mainly due to
cell A is communicating with cell B
humans have enzymes to break down starch, but not cellulose
2
2
survived based on the adaptations that they had to the new environment
the size of the DNA fragments produced
Cromwell current bringing food up to the surface from deeper in the ocean
A specific enzyme would no longer be made.
Ocean currents are associated with food availability for the Galapagos penguins. This is most likely due to the
cell A is communicating with cell B
humans have enzymes to break down starch, but not cellulose
2
2
survived based on the adaptations that they had to the new environment
the size of the DNA fragments produced
Cromwell current bringing food up to the surface from deeper in the ocean
A specific enzyme would no longer be made.
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