Answer:
Lactoferrin, lysozyme and peroxidase.
Explanation:
Lactoferrin, lysozyme and peroxidase are the substances which are present in the saliva and tears and work as a first line of defense in the body against harmful microorganisms in humans and animals. Lactoferrin helps to protect the body fromagainst DNA or RNA based viruses such as rotavirus and HIV. Lysozyme is a type of enzyme which prevents the growth of bacteria by breaking down the cell wall of bacteria.
Answer:
cloning
Explanation:
one of the most controversial uses of genetic engineering has been cloning, or producing a genetically identical copy of organism. while the ethics of cloning are hotly debated, the 1st ever sheep was cloned in 1996 by scientists.
A carbohydrate that forms plant cells walls. C!
A protein. Proteins are what give us our traits and features.