Stem cells are what allow planaria to grow and regenerate as the stem cells can change into any of the cells that make up the planaria.
Answer:
Flow of Energy can be explained by means of two models namely: single channel energy model and Y-shaped energy model.
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1. Contains their own DNA
2. Contains ribosomes that closely resemble prokaryotic cells
3. Reproduce by fission, and they are independent from cells.
Answer:
Autotrophs.
Explanation:
Autotrophs may be defined as the organisms that can prepare their own food. The autotrophic organism do not depend on the other organisms for their food.
Plants are considered as autotrophs because they can prepare their own food. The autotrophs uses sunlight to convert the water and carbon dioxide into food and oxygen.
Thus, the correct answer is option (3).
