Answer:
Spirogyra is a genus of green algae that belong to the order Zygnematales. These free-flowing, filamentous algae are characterized by ribbon-shaped chloroplasts that are arranged in a helical manner inside the cells. So the name is derived from the spiral arrangement of chloroplasts in these algae.
Explanation:
Sand dunes or desert pavement
Answer:
yes
Explanation:
due to drift / variation human has been able to atttain high and advanced level of intelligence and development
Answer:
gas, liquid & a solid
Explanation:
carbon dioxide, sweat/pee