Is a test that can be used to detect genetic abnormalities before birth.

Amniocentesis

Explanation: Amniocentesis, a medical technique used to test DNA in amniotic fluid, allows physicians to identify genetic abnormalities before birth. A woman may choose to terminate a pregnancy rather than give birth to a child who will be born with serious birth defects. This presents a host of ethical questions:

* Do fetuses have rights?

* Is it ethical to abort fetuses?

* Is it ethical to abort fetuses because parents want to raise healthy children only?

* Is it ethical to abort fetuses that will suffer from lifelong, serious, and perhaps painful defects?

* Is it ethical for states to pass laws restricting women’s rights to abort pregnancies?...PF

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.