Answer:
Un organismo unicelular está formado por una única célula. Ejemplos de organismos unicelulares son las bacterias y las algas y algunos hongos, los protozoos. ... La mayoría de seres unicelulares son procariotas, como las bacterias, pero existen algunos seres unicelulares eucariotas, como los protozoos.
Explanation:
Istanbul. It's Istanbul, not Constantinople!
The answers are:
a. physical geography
b. human geography
Geography is divided into two main branches, physical geography, and human geography, and after that, they branch out much more and include the other geographical disciplines in them.
Physical geography is mainly concerned with the study of the natural characteristics of the Earth, both the ones on the surface and the once close to the surface.
Human geography is mainly focused on the study of the human race, the background, perceptions, interactions, organizing, human groups, effects on and from the environment etc.
Asthenosphere is the answer of this question. It best describes the all above mention properties.
Asthenosphere is the the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.