Question

Explain how the fish blastula is able to go from a ball of simple cells to a complex fish with many organs and parts. Be specific and use important vocabulary.

Answer 1

Source:

opentextbc

Step-by-step explanation:

The fish blastula is able to go from a ball of simple cells to a complex fish with many organs and parts through the process of embryonic development.

During embryonic development, the cells of the blastula undergo a series of changes that allow them to differentiate into the various tissues and organs of the adult fish. This process is controlled by a complex network of genes and regulatory molecules, which direct the cells to take on specific roles and functions.

One of the key steps in this process is called gastrulation, which occurs during the early stages of embryonic development. During gastrulation, the cells of the blastula begin to rearrange themselves, forming a two-layered structure called the gastrula. The outer layer of cells, called the ectoderm, will eventually give rise to the skin, nervous system, and other tissues. The inner layer of cells, called the endoderm, will give rise to the digestive system and other internal organs.

After gastrulation, the cells of the ectoderm and endoderm continue to differentiate and specialize, forming the various tissues and organs of the adult fish. This process is called organogenesis, and it involves the coordinated growth and development of the different cell types.

Overall, the fish blastula is able to go from a ball of simple cells to a complex fish with many organs and parts through the process of embryonic development. This process involves the coordinated growth and differentiation of the cells of the blastula, leading to the formation of the various tissues and organs of the adult fish.

Answer 2

The process by which a fish blastula (a ball of simple cells) develops into a complex fish with many organs and parts is called embryonic development. This process is controlled by a complex series of genetic and cellular processes that result in the differentiation of the blastula cells into the various cell types and tissues that make up a fish.

During embryonic development, the cells of the blastula begin to differentiate into two main cell types: the epiblast and the hypoblast. The epiblast cells give rise to the ectoderm, which forms the outer layer of the developing fish, and the hypoblast cells give rise to the endoderm, which forms the inner layer.

As development continues, the cells in the ectoderm and endoderm begin to differentiate further into the various tissues and organs of the fish. For example, the ectoderm gives rise to the skin, nervous system, and sensory organs, while the endoderm gives rise to the digestive system and respiratory organs.

In addition to this process of cell differentiation, embryonic development also involves the growth and specialization of cells and tissues through a process called morphogenesis. This process results in the formation of the various structures and organs of the fish, such as the heart, liver, and kidneys.

Overall, embryonic development is a complex and dynamic process that involves the coordination of many different genetic and cellular processes. Through this process, the simple cells of the fish blastula are transformed into a complex and highly organized organism with many specialized organs and parts.