Explanation:
Option first is the correct one
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.
Answer:
(1) Amoeboid protozoans or sarcodines
They are unicellular, jelly-like protozoa found in fresh or sea water and in moist soil.
(2) Flagellated protozoans or zooflagellates
They are free living, non-photosynthetic flagellates without a cell wall.
(3) Ciliated protozoans or ciliates
They are aquatic individuals that form a large group of protozoa.
Explanation:
hope this helps :}
Archea are known to survive harsh conditions.
<span>the tidal mouth of a large river, where the tide meets the stream.</span>
