Answer:
A. ocean trenches
Explanation:
I just took that test. Sorry I know I'm late and this won't help.
By the heat of the enegry
Answer:
John accidentally put his hand on a burning stove and immediately drew it back, yet still he is experiencing pain.
In this sentence, stimulus will be a hand touching fire of the stove. External response will be moving of the hand from the stove immediately.
A stimulus can be described as any physical or chemical change which elicits a response form a living organism. The stimulus is detected as a signal and response is generated in accordance to the signal.
True, native elements are buried deep within Earth's interior.
Answer:
The correct option is A.<u><em> Normal microbiota may significantly impact human health and disease.</em></u>
Explanation:
A wide number of microorganisms are present on or inside of our body. All these microorganisms make up the natural microbiota. The normal microbiota is very important to maintain the health of the host.
However, any microbial imbalance can lead to causing disease in its host. The microbiota of the gut have a disease-promoting effect but can also have protective properties. Differences in this microbiota can lead to serious conditions.