Answer A:
1. Spiral chloroplast:
This organelle help in photosynthesis, because it contain green pigment called chlorophyll in which water and carbon dioxide combine in the presences of sun light to prepare glucose.
2. Cell wall:
It is chemically composed of<span> an outer layer of pectin and an inner layer of cellulose. It provide rigidity and shape to spirogyra cell.</span>
Answer B:
The other parts which are not labelled include mucilage, cytoplasm, pyrenoids, cytoplasmic strand.
Answer C:
Function of pyrenoid:
<span>Each chloroplast strand has several round bodies called 'pyrenoids', which are responsible for starch production.
</span>Function of mucilage:
Mucilage help in retaining water in cell.
Answer:
precipitation falls on a rock formation
Explanation:
its because of water, wind and other natural disasters a erosion occurs.
so in this case it should be option 2.
The correct answer would be A.) Urinary Bladder
<span>A simulation is a model that imitates a real-world situation. </span>
Answer:cause less-mature cells to divide too rapidly, often leading to the development of cancer
Explanation: when damage is done dna is divided quickly witch makes them develop cancer
