Through recombinant DNA technology, many plants now can manufacture their own Bt-toxin, which improves fermentation.
Answer the following statement true (T) or false (F)
False
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Which best describes the role of neurotransmitters in behavior?
A. In specific ecological contexts, neurotransmitters can be important for behavior. For instance, aggression requires the neurotransmitter serotonin. B. Some specific behaviors will require neurotransmitters. For instance, aggression requires the neurotransmitter serotonin. C. Neurotransmitters allow neurons to communicate, and are thus involved in all behaviors. Levels of specific neurotransmitters have been associated with levels of specific behaviors -- such as serotonin and aggression. D. Neurotransmitters have been developed for researchers who want to manipulate animal behaviors. For instance, serotonin can be applied to lobsters to increase aggression.
Four of the five blood cell types listed below share a
common origin. Select the exception. a. neutrophil b. megakaryocyte c. lymphocytes d. monocyte e. basophil
The transitional period between which two phases has its own name?
a. prophase-metaphase b. metaphase-anaphase c. anaphase-telophase d. telophase-metaphase e. prophase-anaphase
The role of decomposers is important to all of the following cycles except the
A. carbon cycle. B. hydrologic cycle. C. nitrogen cycle. D. phosphorus cycle.