Hydrangeas can have either pink or blue flowers. You want to test if the flower color is influenced by the environment, such as the acidity of the soil. Design an experiment to test if soil acidity affects flower color
What will be an ideal response?
Take a cutting from a blue hydrangea and plant it in soil that has had its acidity altered, and take another cutting from a blue hydrangea and plant it in soil of the same acidity that the original plant is growing in. If the flowers of the cutting in the altered soils are pink, and the flowers of the cutting in the unaltered soil remain blue, then the environment does influence flower color.
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Of the following sequences, which shows the correct molecules through which electrons flow when delivered to the electron transport system by NADH?
A) complex I, cytochrome c, complex III, coenzyme Q, complex IV, oxygen B) complex I, coenzyme Q, complex III, complex IV, oxygen C) complex I, coenzyme Q, complex IV, cytochrome c, oxygen D) complex I, coenzyme Q, complex III, cytochrome c, complex IV, oxygen E) complex II, coenzyme Q, complex III, complex IV, oxygen
The pulmonary artery carries blood away from the
a. aorta. b. right atrium. c. right ventricle. d. left atrium. e. left ventricle.
Centromeres uncouple and chromatids are separated from each other
A. The statement is true for mitosis only. B. The statement is true for meiosis I only. C. The statement is true for meiosis II only . D. The statement is true for mitosis and meiosis I. E. The statement is true for mitosis and meiosis II
Which of the following statements regarding cnidarians is true?
A) Cnidarians have three true tissue layers. B) The digestive and circulatory compartment of cnidarians is called the gastrovascular cavity. C) The more stationary cnidarian body form, which is cylindrical with a ring of tentacles, is the medusa. D) Cnidarians are herbivores and can be destructive grazers on seaweeds.