Answer:
Infectious diseases are caused by pathogens, which include bacteria, fungi, protozoa, worms, viruses, and even infectious proteins called prions. Pathogens of all classes must have mechanisms for entering their host and for evading immediate destruction by the host immune system. Most bacteria are not pathogenic.
Explanation:
Answer:
Rocks deteriorating the ocean floor
Explanation:
As rocks scrape past the ocean floor they chip away at it smoothing it (erosion) out but due to continental drift and magma rising and cooling it causes the new igneous rock forms on the ocean floor making it rough and rugged.
When thinking about this think about a pebble on the beach, what it is?
rounded due to erosion just as scientists thought the ocean floor would be.
Answer:
The seed of a tree may sprout in soil that hasa collected in a cracked root. As the roots grow, they widen the crakcs, eventually breaking the rock into pieces. - mechanical weathering
Excretory System is the wastes that gets out of your body by sweat, gas and other types of wastes.Urinary system rids the blood of wastes produced by the cells.
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