What is the benefit of using the Earth’s magnetic field to migrate compared to the sun or stars? What will be an ideal response?
ANSWER: Unlike the sun and stars, which could be obscured by weather conditions, the Earth’s
magnetic field can always be detected by those animals that are sensitive to it. In addition, the
flow of the magnetic field is continuous and not latitude dependent.
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Place a large amount of hydrogen gas and oxygen gas in the presence of a fire and you will get an
explosion. In light of this, explain how it is possible that water, which is composed of hydrogen and oxygen, is often used to put out fires.
What will be an ideal response?The cellular targets of physical and chemical agents fall into general categories including those that damage
A) the mitochondrion. B) the cell membrane. C) cytoplasmic inclusions. D) the nucleus.
A scientist is investigating a hormone response in rose bush stems by removing the apical meristems of the main stems. What is the most likely result of this experiment and what hormone is responsible?
A. Flowers will turn yellow and fall off under the influence of auxin. B. Lateral buds will develop under the influence of cytokinin. C. New apical buds will develop under the influence of auxin. D. More leaf buds will appear along the main stems under the influence of auxin. E. Larger, deeper roots will form under the influence of cytokinin.
HD heredity seems to increase if a father inherits the mutant allele from his mother. This is most likely caused by ________
A) selection B) segregation C) recombination D) imprinting