Which of the following is NOT a possible scenario resulting from genetic engineering?
Genetically engineered cattle grow faster than unmodified cattle.
Genetically engineered corn remains untouched in one field, while insects attack wild corn.
Genetically engineered herbicide-resistant rice provides more vitamins than wild rice.
Genetically engineered salmon escape from their pens and outcompete native salmon.
Genetically engineered salmon reach market size significantly faster than is normally the case.
Genetically engineered herbicide-resistant rice provides more vitamins than wild rice.
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Which of the following is an example of how cultural change influences evolution?
A. Africans being carriers for sickle trait in areas where malaria is present B. Inuits in Greenland having a larger body, reducing surface area to volume C. people in the northern regions having less pigmentation in order to obtain more vitamin D D. people becoming lactose tolerant in areas where the domestication of cattle occurred
During secondary growth of a plant, ____ gives rise to wood and ____ gives rise to periderm
a. vascular cambium; cork cambium b. cork cambium; apical meristem c. cork cambium; vascular cambium d. lateral meristem; apical meristem e. vascular cambium; apical meristem
The term “respiration” in animals refers to the ____
a. movement of oxygen into an animal only b. movement of carbon dioxide out of an animal only c. movement of oxygen into an animal and the movement of carbon dioxide out of the animal d. binding of oxygen to hemoglobin molecules in the blood e. diffusion of oxygen across a cell membrane
The major cation responsible for regulating actin-myosin contraction is
a. Ca2+. b. H+. c. K+. d. Na+.