Rosa has a vegetable garden. she places earthworms, which are decomposers, in the garden soil.
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Rosa has a vegetable garden. she places earthworms, which are decomposers, in the garden soil.
what is rosa most likely trying to do?
prevent insects from eating the plants
create usable food energy for the plants
enrich the soil with nutrients
kill the bacteria in the soil
Answers: 2
Biology, 21.06.2019 23:00, gthif6088
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.
Answers: 3
Biology, 22.06.2019 03:30, mickeyo2003
In 1992, hurricane andrew left a wake of destruction through florida. one victim of the storm was a reptile-breeding facility. over 900 burmese pythons were set free, and today thousands of pythons live in florida. these pythons are an invasive species, or a harmful species not native to the region. 1. what impacts do you think the burmese pythons might have on local ecosystems
Answers: 2
Biology, 22.06.2019 09:40, brownsade1648
What is the main fuel source for the work of the cell
Answers: 2
Computers and Technology, 02.10.2019 01:00