Answer:
The region where the embryoblast contacts the trophoblast is called the embryonic pole. ... Just before implantation, the cells in the embryoblast start to differentiate into two layers - the epiblast (primary ectoderm), and an internal layer of cuboidal cells called the hypoblast (or primary endoderm).
-In Africa savanna more wildebeest are born than the environment can support. As a result over a period of years individuals that are well suited to the environment reproduce, and those that have lesser adaptations die before they reproduce. This is referred to as natural selection.
Answer:
This is because of the presence of a lot of sugar in the diabetic patient's blood stream.
Explanation:
As a test for the presence of simple sugars, Benedict's solution is usually added to the test sample and then heated.
A diabetic patient's body system has a lot of sugar flowing around in the blood stream. His body is unable to get this sugar into the cells for use, because the insulin produced by his pancreas is not enough. As a result his body system has a lot of sugar.
Consequently, whenever the patient urinates, the urine has a high sugar content as opposed to a normal person, whose urine has a low sugar content because of a normal functioning body system.
The high sugar content of the diabetic patient's urine is what gives an intense brick red precipitation with Benedict's reagent.
Answer:
ion... ions are nagative and positive charge atom
When a cold air mass moves toward a warmer air mass, it causes a cold front. The warm air rises, leaving colder temperatures in the region. On a weather map, a blue line with triangles represents the front.
Please look at diagram below.
