B. Describe two different techniques used to obtain fetal cells for such testing. Explain any calculations, symbols or assumptions. Describe or list the main types of data that the Grants collect on the finches that they capture in their nets and on the environment of Daphne Major. Pick either an El Ni o effect or a La Ni a effect and explain what kind of weather they cause in the Galapagos and what happens to the evolution of finches during this type of weather. Describe two different mechanisms by which insects can evolve resistance to pesticides.
Evolution is always for the good of the species.
Species that are distinct, but related and therefore similar to each other, often occur in the same environment. Answer ANY TWO of the following. David Remick and his colleagues did an experiment with guppies in Trinidad. Four years later they came back and compared guppies from each area. They found that guppies at the in the predator-free area reproduced when they were significantly larger and older than the fish in the area with predators.