Bacillus thuringiensis produces
A. a toxin that causes food poisoning.
B. single cell protein used as food.
C. enzymes used in cheese-making.
D. a biopesticide.
E. All of the choices are correct.
Answer: D
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Which of the following is NOT true about the
movement of water through a plant?
a. it occurs through columns of dead cells b. the water is pulled through the plant c. the process is called translocation d. it is a passive process e. all of these are true about the movement of water through a plant
In the case of a proto-oncogene like Ras, both copies of the gene must be mutated to increase a predisposition to cancer.
Answer the following statement true (T) or false (F)
The folding of tissue around the neural plate and notochord is known as ____
a. gastrulation b. apoptosis c. adhesion d. neurulation e. embryogenesis
Africanized bees ____ than European
honeybees. a. make less honey b. respond more quickly to perceived threats c. are more aggressive stingers d. are more likely to abandon their colony after being disturbed e. do all of these