Vertebrate animals are organisms that have a spinal column and use bones to support their weight. Scientists consider bones to be an organ of the skeletal system. What organ of a plant is most similar to a bone in animals. A. Stem
B. Root system
C. Cell wall
D. Phloem

The stem, the stem keeps the plant stable. Much like our skeletal system.

by drinking easy

very easy

hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

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