Question

Dau coroana      1.•ia o ramurica de salcie sau de alta planta lemnoasa(Sălcîm,Tei,Stejar);
•indoaie ramura la aproximativ 90°[grade];
•descrieti cele observate;
•scoate atent scoarta de pe ramuri ;
•indoaie ramura din nou,la aproximativ 90°[grade] ;
•descrie cele observate ;
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2.Cerceteaza 3-5 frunze de la diferite specii de plante. Indentifica,in baza celor analizate,care este rolul nervaţiilor frunzelor

3.Compara tulpina salciei cu tulpina pătlaginei.
Tulpina Salciei.| Criterii | Tulpina Pătlaginei |
| 1. 
| 2. 
| 3. 
| 4. 
| 5. 
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4.Identifica,in literatura de specialitate,nmodalitati de prelucrare a fibrelor de in si canepa,pe care le utilizau stramosii nostri pentru producerea tesaturilor naturale.
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5.Formuleaza concluzii despre structurile de sustinere la plante,utilizand cuvinte proprii.
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VA ROOOOOOOGGGGG FOARTE URGENT DAU COROANA SI 99 DE PUNCTE

Answer 1

1.Creanga se rupe cu coaza pe ia dar fara aceasta se indoaie mult mai usor.
2.Nervurile pe aceasta o solidifica si o hraneste.
5.Plantele se sustin in tulpina si in radacina.