Which meteorite condition in space is similar to what most likely was present on early earth?

-abundance of oxygen
-very cold temperatures
-presence of inorganic molecules
-low levels of ultraviolet radiation

?

The correct answer is -Presence of Inorganic Molecules

Explanation:

Scientists believe that primitive earth contains inorganic molecules in the form of CO, NH₃, H₂O, HCN, CH₄ and these inorganic material converted into organic material like amino acids which are used to make protein.

So simple organic molecules were formed like amino acids, succinic acid, uric acid from inorganic molecules which condensed and polymerized to form macromolecules like proteins, nucleic acids.  

Then these molecules must be aggregated by intermolecular force to form an enclosed sphere called microsphere. These microspheres were cell-like and through natural selection got the ability to divide to form live prokaryotic cells.

Thus the presence of inorganic molecule was important to originate life on earth. Therefore the correct answer is - Presence of Inorganic Molecules.

i think the miocene epoch spans the time from 23 million to 12 million years ago.

white blood cells or wbc s are mainly 2 types-

1.agranulocytes

2.granulocytes

the monocytes or macrophages of agranulocytes , dendritic cells which are accessory leucocytes, and b cells which is one type of lymphocytes   identify the antigens present on the pathogen's surface. these three cells are called antigen presenting cells(apc) which are phagocytes and destroy the antigens by secreting antitoxins. besides this leukocyte is always plays vital role in the immunity of the body.