In stage 3 identify the structures that made the organisms different from each other

In the first and second stages, the two organisms may show similarities. But when it comes to stage 3 it is possible that the organism can show a different structure. The difference can be seen from for example the front legs, size, eyes, and others.

Explanation:

An organism when viewed in an ecosystem is a community that develops together with the physical environment as a system. Organisms will always adapt to the physical environment, otherwise organisms also affect the physical environment for the purposes of life.

On the other hand, each organism may show similarities, for example certain plant or animal organisms such as the tiger will show similarities. But in a later stage two tigers will show differences even with the same sex. The difference is, for example, from the shape of the front / back legs, the size, the shape of the eyes, and even the running speed for each tiger.

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Details

Class : Junior High

Subject : Biology

Keywords

- Organisms

In stage 3, a different structure like forelimbs, their sizes as well as eyes begin to appear.  

Further Explanation:

An embryo refers to the early phase of development in organisms. They involve stages like blastula, gastrula, and finally, organogenesis. The embryo of salamanders, lizards, humans, cats, and birds are similar during the first phase of their embryonic growth and have many homologous structures that are not found when the organisms are adults.  

As the embryonic development progresses, one can see distinguishable features of the embryo, which segregates a cat from a human. These features include forelimbs, eyes, nose, and many more. The distinguishable features make every organism different; thus, we can go ahead and classify or identify organisms based on the various developmental stages it shows.

The progressing developmental stage ensures that the organism develops and matures into a fully developed individual. The proper nutrition and other condition required during the developmental stages is needed to make sure an appropriate and well-needed growth occurs.

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Answer Details:

Grade: Middle School

Subject: Biology

Chapter: Developmental Biology

Keywords:

Embryonic development, forelimbs, eyes, human, cat, embryo, blastula, gastrula, organogenesis.