The dense needles of Douglas fir trees can
prevent most light from reaching the forest
floor....
Biology, 23.10.2020 19:40 sydneydavis57
The dense needles of Douglas fir trees can
prevent most light from reaching the forest
floor. This situation would have an immediate
effect on ?
Answers: 1
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 13:30
What is any method of measuring the age of an object or event in years, such as using atomic half-life?
Answers: 2
Biology, 22.06.2019 14:30
All annelids and arthropods have a blank body plan . unlike annelids, arthropods also have blank . the circulatory system of annelids is blank , while circulatory system of arthropods is blank .
Answers: 3
Biology, 22.10.2019 11:50
Mathematics, 22.10.2019 11:50
Mathematics, 22.10.2019 11:50
Mathematics, 22.10.2019 11:50
Mathematics, 22.10.2019 11:50
Mathematics, 22.10.2019 11:50
Mathematics, 22.10.2019 12:00
Mathematics, 22.10.2019 12:00
Mathematics, 22.10.2019 12:00