Which of the following represents ways nitrogen can enter the soil?
I. Photosynthesis
II. Su...
Biology, 30.08.2021 21:30 kevinvalencia01
Which of the following represents ways nitrogen can enter the soil?
I. Photosynthesis
II. Sunlight
III. Rainfall
III only
I and II
I and III
I, II, and III
Answers: 3
Biology, 21.06.2019 20:30
How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?
Answers: 2
Biology, 21.06.2019 23:00
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 β 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 β especially cells from the crumbly dftd tumors β 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.
Answers: 3
Biology, 22.06.2019 00:50
What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.
Answers: 2
Biology, 22.06.2019 04:30
Study this image which statement best describes the rock shown check all that apply
Answers: 3
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