It means that two or more cells connected together. 
You can look at the word 'cell' and 'conjunctions' separately. 'Cell'  is a tiny particle. 'Conjunctions' means 'two or more things connected', so just put the two meanings together.
Hope this helps. :)
        
             
        
        
        
Answer:
Multicellular eukaryotes evolved from unicellular prokaryotes by the process of endosymbiosis
Explanation:
All living beings have evolved from three groups of animals closely related with each other.Domains: Archaea,bacteria and eukarya.the archaea and bacteria are unicellular organism surrounded by single cell water and  and coiled stand of DNA. Eukaryotic cells are more complex and with a linear  strand of DNA which is in the nucleus. Actually mitochondria which had evolved from a free living bacterium which was swallowed by another cell. The host cell benefited from the chemical energy that mitochondria produced and mitochondria in turn is benefited to be inside the protected environment. Mitochondria is the main organelle which the multicellular eukaryotes with unicellular prokaryotes.
 
        
             
        
        
        
Hello!
Higher temperature affects plants’ growth especially in temperate crops like wheat. It reduces the growth of shoots and roots in plants. This, in turn, results in a substantial reduction in the overall height of the plant. High air temperature can lead to dehydration and scorched leaves.
In general, the increase of temperature would cause a damage in ecology of a certain area as most plants would not be able to adapt to this change. This, in turn, will affect the distribution of such plant species as they would die off unless placed in an environment with more favorable conditions.