These are the only options to pick from ?
The central vacuole is a cellular organelle found in plant cells. It is often the largest organelle in the cell. It is surrounded by a membrane and functions to hold materials and wastes. It also functions to maintain the proper pressure within the plant cells to provide structure and support for the growing plant.//////
Answer:
im going to say End Triassic is my favorite you can go on to wiki searching this and find all you are looking for.
something thats helps me is printing out he form and highlighting everything thats important and working from there
Explanation:
Answer:
they are of the same genus but not of the same species and therefore they cannot mate to give rise to fertile off springs only organisms from the same species are able to give rise to fertile offsprings
Answer:
the chorion, the allantoids, the amnion and the yolk sac.
Explanation:
The amniotic egg has four layers. All of these layers are enclosed by a shell
The chorion helps for gas exchange. It's the layer that covers the whole embryo
The allantoid is a sac that helps with gas exchange but also is the one that encloses the wastes of the embryo during the development into the egg, one analogy is with the garbage bag, where all the waste is lookup
The amnion is the layer that protects the embryo, is like a jacket that surrounds the embryo
The yolk sac is the one that has the nutrients that are necessary for the embryo throughout all the development. It is like a lunch box for the embryo