Answer:
I think it's the second one or first one
I think it’s sperm for your question
Answer:
c
Explanation:
The very primitive and early microorganisms on the earth's surface were protobionts. Protobionts are cell-like microscopic structures, and they are made up of organic and inorganic molecules present in a lipid bilayer membrane. The layers of the lipid membranes were folded into bilayers and transformed into a bubble shape when placed in water. These membranes were selectively permeable and also observed shrinkage and swelling in osmotic conditions. Protobionts also possess the characteristics of reproduction.
(please vote me brainliest)
1/100 heads and 1/100 tails because the are dependent variables
8 of them are essential and human bodys can't produce them.they should be got from foods