To my understanding the basic function of the primitive streak is to provide a pathway for pluripotent cells to migrate to different areas of the embryo. This is how neural tubes are formed, leading to neural folds and the neural groove. Which eventually gives rise to the formation of the brain, spinal cord and the autonomic portion of the peripheral nervous system. However if it wasn't for the primitive streak, the formation of the embryo itself would be impossible since everything comes from pluripotent cells. I guess the "function" just depends on on what part of development you are referring to.
It is as primitive as a cave man.
The group name for tigers is a "streak" or an "ambush".
Tigers don't live in groups. They only seek out another tiger when they mate. Lions live in groups called a pride. A female tiger and her cubs are called a streak, but tigers in the wild are basically solo animals.
The Streak of Slate refers to the color left by a mineral when it is scratched on a ceramic plate. Slate typically has a black or dark gray streak due to its composition of primarily clay and volcanic ash. The streak test can be useful in identifying minerals based on their distinctive colors.
The most primitive, if you will, organism would be a single-celled microorganism, a member of the domain Archaea. An amoeba is one example of a single-celled microorganism. In some fields of science the terms "primitive" and "advanced" have been replaced with "simple" and "complex" as the word primitive is mainly a reference to evolutionary timescale.
Primitive streak
The first organ to form in the embryo is the primitive streak, which later develops into the notochord. The notochord plays a crucial role in the development of the nervous system.
The streak of Jade is white.
The comparative form of "primitive" is "more primitive."
Primitive is spelled the way you spelled it: primitive.
Perlite does not have a streak color because it is a volcanic glass that does not leave a streak on a streak plate.
The lack of a streak would indicate that the mineral is harder than the streak plate, or the color of the streak is the same as the color of the streak plate.
normally white but may streak other colors if the specimen is stained i dont give a duck
a streak a streak
its streak is white.
Streak
Apatite has a white streak.