Systemic circuit is defined as one of the two circuit of circulation that occurs in human body.
<h3><u>Explanation</u>:</h3>
The circulatory system is divided into two phases in the human body. They are:
A. Pulmonary circulation
B. Systemic circulation.
The pulmonary circulation is the short circuit of circulation that starts from the right ventricle, goes to lungs via pulmonary artery and returns to left auricle via pulmonary vein.
The systemic circulation is the bigger circuit that starts from the left ventricle, goes to each and every organ of the body via aorta, and returns to the right auricle via venacava.
The lands which are lef unuse after it is affected by environmental contamination.
<u>Explanation:</u>
- Brownfields are abandoned or unused fields where reuse is hindered by real or observed environmental contamination. The places may include localities destroyed by hazardous materials, petroleum or mine-scarred land.
- Brownfields are found in a city or town's manufacturing section, on areas with discontinued factories or industrial buildings, or other earlier contaminating operations like steel millhouses, refineries or landfills. It is mainly found in urban cities where there is normally a stronger potential to redevelop these localities.
- Some of the most frequent contaminants known at Brownfield sites are from fuels such as grease, propellant, diesel and kerosene from subterrene storage tanks, floor drains, External storage of barrels and machine, and cleaning solvents.
<span>The question says, 'during embryonic development, if the anus develop before the mouth, the organism is a ............ The correct option is B. In deuterostome during embryonic development anus develops first from or near embryonic blastopore, mouth develops later at some distance from the blastopore or from the opposite end.</span>
I don’t know but it’s either b or c
