What is the cause of blindness in mole rats?
a. They live in dry areas that do not provide enough moisture.
b. They live in a group and do not need to see.
c. They live in the light and are blinded by it.
d. They live in underground darkness.
Ans: d. They live in underground darkness.
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Indicate whether the statement is true or false.
In the United States, what fuel source supplies the largest percentage of total energy?
a. nuclear energy b. renewable energy c. coal d. natural gas e. petroleum
What is the difference between marsupial and placental mammals?
A. Placental mammals are fully developed before birth. Marsupials are born before they are fully developed and must complete their development in a pouch. B. Marsupials produce shelled eggs. C. Placentals nurse their young while marsupials do not. D. Marsupials do not produce milk and placentals do.
Which of the following processes occurs in chloroplasts?
a. DNA synthesis b. photosynthesis c. protein synthesis d. cellular digestion