Transportation in Animals and Plants — Science STD 7 — Question
Gujarat BoardEnglish MediumSTD 7ScienceTransportation in Animals and Plants1 Mark
Question
Arteries have a very thick and elastic walls. Why?
✓
Answer
Arteries carry blood at a very high pressure due to the pumping action of heart. Hence, they need thicker walls to withstand the high pressure of blood.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.