Sandy has four boxes filled with pink ribbons and yellow ribbons. the table shows the number of pink and yellow ribbons in each box.

box number
pink ribbons
yellow ribbons
1
4
5
2
16
20
3
12
15
4
36
45

a fifth box has pink and yellow ribbons in the same proportion as sandy’s first four boxes. which tables could represent box number 5?

b. astronomers

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.

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