A diffuse nerve net would be found in which of the following animals?
A) Insect B) Jellyfish C) Flatworm D) Human E) Octopus
B
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If seed germination took place in 100% of plants at the 1.0 mg/mL concentration, and no germination was observed at the 0.1 mg/mL concentration, how would you modify a second experiment to determine the actual effective concentration?
What will be an ideal response?
Plants obtain necessary gases from __________ and water from __________
a. air; air b. air; roots c. roots; air d. roots; roots
Based on the table above, which of the following statements is not correct?
A) Cookies with the most fat were the cookies that were not only the flattest but also the largest in diameter. B) Cookies with the most fat were the cookies that were not only the flattest but also the driest. C) Cookies with the most fat were the cookies that were not only the thickest but also the largest in diameter. D) Cookies with the least fat were not only the heaviest but also the thickest cookies.
A hypothetical mutation in a squirrel population produces organisms with eight legs rather than four. Further, these mutant squirrels survive, successfully invade new habitats, and eventually give rise to a new species. The initial event giving rise to extra legs would be a good example of
A) punctuated equilibrium. B) species selection. C) habitat selection. D) changes in homeotic genes. E) allometry.