A fertilized egg usually implants itself and develops in the uterus.
<span>During the prenatal development, fertilized egg adheres to the wall of the uterus. Zygote (fertilized egg) at this stage forms blastocyst. The blastocyst consists of an inner cell mass and the outer layer -the trophoblast. Trophoblast surrounds the inner cell mass and a fluid-filled cavity - blastocoele. Inner cell mass will form embryo and trophoblast gives rise to the placenta.</span>
Community, also called biological community, in biology, an interacting group of various species in a common location. For example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.
Coral reef
These gymnosperms soon became the dominant plants. The Mesozoic is sometimes called the Age of cycads.
But their success was only short-lived. During the mid to late Mesozoic, the first flowering plants or angiosperms appeared.
The mesozoic is <span>Triassic</span>
Answer:
It must restate the question.
Answer:
Level 1...Plants and algae make their own food and Plants and algae make their own food and are called producers.
