Characters include a white or cream dorsal stripe and lack of cranial crest. the species has two known sub-species, Anaxyrus Boreas, Boreas and A.b., halophilus. Western toads are mostly terrestrial and live in habitats from mountain meadows to desert flats.
Scientific Name: Western Toad: Anaxyrus Boreas
<span>Reproduction during which one organism produces genetically identical offspring is called asexual reproduction.</span>
Answer:
This person was part of the control group
Explanation:
PET scan positron emission tomography is a special image test that can show how different tissues in the body is functioning or in the case of the brain reacting to stimuli.
In this case the cingulate cortex is the area of the brain linked to reactions involving pain or painful stimuli. If a person has undergone a painful procedure and was not given any relief this area will be activated and will be able to be detected on a PET scan. On the contrary, if one has received pain relief this will not be the case. So, an active cingulate cortex will be observed on a PET scan for a subject in pain.
This first step to protecting this endangered species of snail is to preserve its existing habitat. This means that steps need to be taken to ensure that <span>Chittenango Falls state park continues to offer a refuge to this snail, and that steps are taken to improve the water quality in the park. A scientific study can be run to identify the pollutants and their concentrations that are having a negative effect on the snail species. For this, water quality testing can be conducted to first identify any pollutants. Once suspect pollutants are identified, ecotoxicology tests can be run to identify concentrations of the pollutants that have an effect on the snail. Both acute (short term) and chronic (long term) tests would have to be conducted, looking at mortality as well as sub-acute end points such as growth and reproduction. Once concentrations of pollutants are identified that would negatively affect the snail, we can call these 'water quality guidelines' that we would need to keep water quality within. We can then identify sources of these pollutants upstream, and take steps to reduce the pollution at source, by forcing factories to treat their water more rigorously or changing upstream land use. Finally, what can also be considered is introducing the snail species to new habitat within the State of New York. We must be careful here though as the actions of man have spread invasive species globally. </span>
