Why is the amoeba considered an outgroup in this cladogram?

Amoeba is not considered as a body part but it has similar characteristic to unicellular and multicellular, this is the reason why it is an outgroup in the cladogram. In addition, to be considered as an outgroup, an organism must be part of a group on the tree but just very similar with the members on that tree.

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )