The flight of a blimp best illustrates
What will be an ideal response?
Archimedes principle
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How is budding of bacteria to produce daughter cells different from binary fission?
A. The chromosome does not need to be replicated. B. The bud doesn't receive any DNA. C. The cytoplasmic division is unequal. D. A septum must form during budding.
Answer the following statements true (T) or false (F)
1. When Schmidt-Nielsen and his colleagues followed a "pulse" of air through the respiratory system of an ostrich, it took two full cycles of inhalation and exhalation for this pulse to pass through and be exhaled. 2. Chemoreceptors for oxygen normally play the most important role in regulating breathing rate. 3. Smaller mammals typically have higher ventilation rates than large mammals. 4. The shape of the oxygen-hemoglobin dissociation curve is a straight line. 5. Asthma attacks result from contraction of the muscles surrounding the bronchioles.
In a eudicot seed, which structure emerges
first?
a. embryonic shoot b. embryonic root c. coleoptile d. cotyledons e. the embryonic root and shoot emerge at the same time
In science, a theory is:
A) a concept that you try to prove experimentally. B) a general set of principles supported by evidence. C) a guess based on previous observations. D) something that is always true.