ECB refers to:
a. A genetically engineered plant that is resistant to insect pests
b. Edible corn byproducts
c. An insect pest that reduces corn yield
d. European corn borer
e. c and d
2. How many days are required for a corn seed to become a mature plant with maximum weight kernels ready to be harvested?
a. about 23
b. about 65
c. about 140
d. about 180
3. "BT Corn" refers to corn that:
a. Has been infested with insect pests
b. Has been infected with bacteria
c. Is resistant to ECB
d. Is not affected by pesticides
4. BT is:
a. A stomach poison produced by bacteria
b. A genetically engineered corn product
c. A bacterium carried by the European corn borer
d. A bacterium that has a gene
