Cellular organelles are the internal organs of a cell. They are responsible for keeping the cell alive. They do this by bringing in food for the cell, getting rid of waste, protecting and repairing the cell, and helping it grow/reproduce.
The correct answer to this question is this one: they lacked oxygen. The earliest organisms were completely heterotrophic in nature because of the reason that they lacked oxygen. <span>A heterotroph is an organism that cannot fix carbon and uses organic carbon for growth. </span>
Capsid is the component of a virus that is lacking in its cell
A capsid is the protein shell that surrounds a virus. Capsids functions by protecting the nucleic acids of a virus while interacting with the host environment. Capsids are made up of many oligomeric structural subunits that contains the protein; protomers. Capsids are generally grouped based on their structure. The common ones are helical and icosahedral.
Antagonists muscles (e.g. biceps and triceps brachii)
Answer:
Explanation a chemical define media is a media that do not contain any animal derived source as a component. It is a media whose chemical component are known. It is said to be the purest form of media for culture.
Complex Chemical media is a media whose component are not known. It includes both animals,yeast, plant source whose component are not known this Mixture makes it complex.
Example of complex media is Human Endothelial-SFM (Life Technologies), Endothelial Basal Media, EndoGRO-LS Complete
Example of chemically defined media enhancing or inhibitory effects of GSLs and sphingolipids on tyrosine kinases associated with growth factor receptors.
