An unidentified arthropod with no antennae and
eight legs could be closely related to
a. grasshoppers.
b. ticks.
c. crayfish.
d. millipedes.
e. trilobites.
Answer: b
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Describe at least 3 effects of mangrove destruction on marine habitats
What will be an ideal response?
The cell wall
a. provides physical support for plant cells. b. controls the transport of materials out of the cell. c. replaces the plasma membrane in plant cells. d. is found in all eukaryotes. e. prevents the transport of toxic substances into the plant cells.
You are a doctor who specializes in genetic diseases. A married couple comes to see you for genetic counseling. The woman has PKU, the symptoms of which she manages by diet
The man and woman are first cousins and would like to know the probability that any of their children will have the disease. What would you tell them?
Which of the following statements regarding the use of genetically modified foods in the United States is INCORRECT?
A) Bt crops are not intended for human consumption. B) All GM foods for consumer use must be labeled as such. C) Not all GM crops involve transgenic plants. D) DNA tests can be used to identify many GM plants. E) All of these choices are correct.