Dopamine functions as a neurotransmitter — a chemical released by nerve cells to send signals to other nerve cells. The brain includes several dopamine pathways, one of which plays a major role in reward-motivated behavior.
The phenotypes of snapdragons of F1 generation had pink flowers only.
Explanation:
The crossing of snapdragon with red flowers and white flowers as well led to the production of F1 offspring of hybrid quality having pink flowers only. This F1 phenotype under goes pollination and results in F2 phenotype with a ratio of 1 red, 1 white and 2 pink flower.
This is incomplete dominance as the phenotypes of parental plant, as in the white and red flowered plant reappear in the F2 generation.
The pia meter is the thin meninx attached to the surface of the brain, containing many nerves and blood vessels.It is <span>the delicate innermost membrane enveloping the brain and spinal cord. Hope this answers the question. Have a nice day.</span>
Answer:
C. Yes, Trisha should have a group of frogs in her experiment that is not exposed to any pesticide at all
Explanation:
The election of a control group is essential in an experiment. Its principal purpose is to allow the discrimination of the results obtained by the treatment in the study (in this case, the effect of pesticide) from the results that might be a consequence of other factors. The control group must be selected from the same population of the treatment group. All the groups must be similar in every variable that might influence the results, except for the study treatment.
- Control group: Frogs that are not exposed to any pesticide
- Treatment one: Frogs exposed to a certain concentration of pesticide
- Treatment two: Frogs exposed to an increased concentration of pesticides ...
And so, the number of treatment groups will depend on the different concentrations of pesticides Trisha wants to study.
All groups must belong to the same population and of course, to the same species. They must also be exposed to the same variables, excepting for the pesticide variable.
This is probably c, faults, because of all of the fault lines in those convergent boundaries. Like, for example, California is full of faults.
