The human mouth contains a wide variety of bacteria. While some are beneficial, others can cause gum disease and infections. Researchers have found a way to target disease-causing bacteria. They selected an antibiotic that ordinarily targets a wide range of bacteria and attached the drug to a protein that binds with the disease-causing Porphyromonas gingivalis bacterium. What would be the greatest widespread medical benefit of this technology?

increased knowledge of gum disease

eradication of Porphyromonas gingivalis bacteria

the ability to identify proteins that bind with bacteria

the ability to fight infection without the loss of helpful bacteria

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.