Answer:
D.
They break down dead organisms.
Explanation:
The saliva has enzymes that start to break down food using the lock and key system.The teeth chews the food and begins mechanical break down of food
It is a cause for higher demand in food
Answer:
Waxes does't contain fatty acids,glycerol and a phosphate group.
Explanation:
Car wax and bee wax contain ester bonds, fatty acids and long chain hydrocarbons but they don't possess fatty acid, glycerol,and a phosphate group.
Its C
On large-scale cheese production, using bought-in cultures is essential because when the milk is coming from multiple farms, often collected over several days, and is pasteurised, the cheese-maker needs to repopulate the milk with lactic acid bacteria in order for it to acidify and to prevent 'bad' pathogenic bacteria
