They mainly target airway epithelial cells
There are 4 types of RNA, each encoded by its own type of gene. ... mRNA - Messenger RNA: Encodes amino acid sequence of a polypeptide. tRNA - Transfer RNA: Brings amino acids to ribosomes during translation. rRNA - Ribosomal RNA: With ribosomal proteins, makes up the ribosomes, the organelles that translate the mRNA.
cannot breathe, is not a living organism, doesn't grow doesn't move
Answer:
A. All lipids are insoluble in water.
Explanation:
Macro molecules are also called polymers, which are formed as a result of polymerization of molecules such as carbon, hydrogen and oxygen.
There are four types of macro molecules in the mammalian system which are
- lipids
- nucleic acid
- protein
- carbohydrates
Lipids are macro molecules that do not dissolve in water i.e. they are hydrophobic. they help in the formation of cell membranes and hormones in the body.
Answer:
3.5 billion years ago, or in the Eoarchean Era.
Explanation:
The first known single-celled organisms appeared on Earth about 3.5 billion years ago, roughly a billion years after Earth formed. More complex forms of life took longer to evolve, with the first multicellular animals not appearing until about 600 million years ago.
The earliest undisputed evidence of life on Earth dates at least from 3.5 billion years ago, during the Eoarchean Era.
Have a fantastic rest of your day!! \(^u^\)
