Describe at least 2 ways that marine iguanas differ from the green iguanas of South American forests
What will be an ideal response?
Marine iguanas differ from terrestrial green iguanas by having adaptations that allow them to survive in the cold waters around the Galapagos Islands. These include having very dark bodies for absorbance of heat energy to raise their internal temperatures, having blunt snouts that are ideally suited for feeding on algae on the rocks, and possessing laterally flattened tails for more efficient swimming.
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How do lampreys differ from modern jawed fishes? What will be an ideal response?
What type of allele is often detected as a distortion in segregation ratios, where one class of expected progeny is missing?
A) dominant negative allele B) temperature-sensitive allele C) lethal allele D) partial dominance E) incomplete penetrance
Which of the following is a successful piece of environmental legislation enacted by the Congress of the United States?
A) Clean Air Act (1970) B) Clean Water Act (1972) C) Endangered Species Act (1973) D) all of the above
The heart secretes the hormone ________, which lowers blood pressure by increasing the excretion of salt and water
Fill in the blank(s) with correct word