Answer;
Primitive streak.
At the onset of the embryonic period, the primitive streak appears. It will eventually become the neural tube.
Explanation;
The primitive streak is a transient structure which forms on day 15 of human development.
It marks the start of gastrulation; the process in which the inner cell mass in converted into the trilaminar embryonic disc.
It originates from the anterior epiblast.
Tropical rain forest
Tropical dry forest
Tropical dry forest / savannah
Desert
Temperate grassland
Temperate woodland
Temperate deciduous forest
Northwest coniferous forest
Boreal forest
Tundra
Answer: The answer is A
Explanation: The acetabulum is a concave area of the pelvis that forms a socket into which the femoral head fits. Together they form the hip joint.
Light rays from an object after passing through a convex lens form an image at the focal point behind the lens (opposite side of the object), What is the actual position of the object? form an image
