Revious 14.
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Pretest: The Universe
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Select the correct answer.
The perihelion is the point at which Earth is closest to the Sun, and the aphelion is the point at which Earth is farthest away. Based on this
information, which statement is true?
A.
Earth moves faster along its orbit during perihelion because of the Sun's gravitational force.
B.
Perihelion marks the beginning of summer, when Earth is closest to the Sun.
Oc.
The longest day of the year occurs during perihelion due to a lunar eclipse.
D.
The Moon rotates faster during perihelion because of Earth's gravitational force.
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The tasmanian devil, a marsupial carnivore, is facing extinction due to devil facial tumor disease (dftd) which causes bulging cancerous lumps and lesions to erupt around the face and neck — often causing enough deformation to make seeing or eating difficult. dftd has evolved into a contagious cancer, a trait that is unique among cancers. devil mating behavior involves biting around the head and neck, allowing cells from one individual — especially cells from the crumbly dftd tumors — to be transferred to the wounds or face of a new individual. this marsupial was once found across australia, but sea levels rose, isolating the tasmanian population, while the australian population went extinct. what would be an outcome of genetic isolation that is likely to have impacted the spread of dftd? a) reduced territory puts diseased individuals in greater contact with non-diseased ones. b) inbreeding results in less variation in facial features so the cancer is generally fatal. c) genetic isolation has made it difficult for scientists to develop a vaccine against dftd. d) the lack of genetic variation in the immune system of tasmanian devils minimizes resistance to the disease.

Fungi exist as single cells or as branching networks of multicellular filaments. how does the structure of filaments relate to their function

Amino acids with hydrophobic r groups are most often found buried in the interior of folded proteins.true or false.