Answer:
They found evidence of an impact crater in Mexico
Explanation:
The K-Pg boundary is the boundary between the Cretaceous period and the Paleogene period, but also marking the end of the Mesozoic era and the beginning of the Cenozoic era. This boundary is dated to roughly 66 million years ago. The K-Pg boundary is characterized with a mass extinction. The dominant organisms on Earth all died out, including the dinosaurs, both terrestrial and aquatic, as well as the flying reptilians, with only the birds surviving from that super-family. The reason for the mass extinction has been an impact with an asteroid or a comet, that was very large and hit the Earth where the Yucatan Peninsula in modern day Mexico is located. The impact was devastating, with heat waves, tsunamis, earthquakes, triggering of the majority of the volcanoes, wildfires, all combined managed to devastate the environment, thus big portion of the species living in it as well. The lucky survivors were smaller organisms, and the mammals turned out to be the most successful in occupying the empty niches and have became the dominant organisms on the planet.
In terms of cells the answer is ribosomes
Answer:
c. not be able to split water to provide NADH.
Explanation:
Photosynthesis, which is the process by which plant species obtain their energy, occurs in two stages viz: light dependent phase and light independent phase. The light dependent phase of photosynthesis requires the energy from sunlight, which is captured by the chlorophyll pigments in the leaves of the plant.
The light energy captured by the chlorophyll is used to split water molecule in a process called PHOTOLYSIS OF WATER. Overall, ATP and NADH (electron donor) are products of the light dependent stage, which enters the next stage to complete the photosynthetic process.
Therefore, a plant that was grown in the dark i.e. no access to light, continuously would not be able to capture light energy and hence not be able to split water to provide NADH.
<span>The original paragraph is: "Another familiar disease is malaria, which Elizabethans refer to as ague or fever. You might associate this with more tropical countries of the modern world but in marshy areas in sixteenth-century England, such as the Lincolnshire and Cambridgeshire Fens, the Norfolk Broads, and Romney Marsh in Kent, it kills thousands. No one suspects that it has anything to do with mosquitoes; rather people believe it is the corrupted air arising from the ling dank marsh (hence the term mal-aria). As a result, you will have no chance of getting proper treatment for the disease."
The correct answer is "it explains the Elizabethan misconceptions about the spread of malaria."
This is because people of Elizabethan England did not suspect mosquitoes from the Marsh (since mosquitoes thrive in wet or damp environments) are the main animal vectors for malaria. Also, since the etiologic agent of malaria is not yet identified at that time, the treatment is almost impossible to give.
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