C, The ground movements (vibrations) caused by seismic waves. Example: Earthquakes. Hope this helped!
I would say the best course of action would be to actually show them ie demonstrate good hand washing activity what with soaping up a lather and washing both the inside and outside of the hands for awhile to ensure no bacteria will be introduced to the food and also ensure the food handler uses neoprene disposable gloves when handling food.
Answer:
The reason is because detritivores and decomposers and omnivores are multilevel food chain consumers in an ecosystem making them not qualified to be assigned to a given trophic level
Explanation:
An organism is placed in a trophic level based the level it is from where the food chain starts with the start of the food chain having a level of 1 for the food producers such including plants and algae
Level 2 organisms are called primary consumers and consists of organism that eat only plants known as herbivores such as cattle
Level 3 organisms are called secondary consumers and consists of animal eating organism known as carnivores such as foxes etc.
Level 4 organisms are called tertiary consumers
Level 5 organisms are the a p e x p r e d a t o r s
Detritivores and decomposers such as bacteria, earthworm flies fungi consume the wastes produced at all trophic levels, therefore they cannot be assigned to a particular trophic level
Similarly, omnivores consumes both plants at level 2 and animals at level 3 making it ambiguous to assign them to one particular trophic level.
True, the term for non-visible blood in stool is termed occult blood.
