The densest stars known to exist are ________
A) white dwarfs B) red dwarfs C) neutron stars D) black holes
D
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Which instrument is usually a liquid-in-glass thermometer?
A) radiometer B) thermistor C) electrical resistance thermometer D) minimum thermometer
(of chromosomes) pairing at meiosis and having the same structural features and pattern of genes.
What will be an ideal response?
Judge the following sentence according to the criteria given below: Marine sediment accumulations are interesting to oceanographers BECAUSE they often contain microscopic fossils that provide clues to the past geographic distributions of marine
organisms. A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct, but the reason is incorrect. D) The assertion is incorrect, but the reason is correct. E) Both the assertion and the reason are incorrect.
In the diagram below, the population growth rate begins to decline after reaching the inflection point most likely because
A) a new keystone predator has been introduced to the ecosystem.
B) the ecosystem's limited resources begin to have an impact on the population.
C) the species in the ecosystem evolve from being K-selected to being r-selected.
D) a catastrophic event, such as a flood or earthquake, disrupts the ecosystem.