The grams of glucose are needed to prepare 400g of a 2.00%(m/m) glucose solution g is calculated as below
=% m/m =mass of the solute/mass of the solution x100
let mass of solute be represented by y
mass of solution = 400 g
% (m/m) = 2% = 2/100
grams of glucose is therefore =2/100 = y/400
by cross multiplication
100y = 800
divide both side by 100
y= 8.0 grams
Answer:
1. Flower
- contain the sexual organs of the plant
- attract insect for pollination
- produce fruit carries the seed during fertilization.
2. Leaf
- capture sunlight for photosynthesis
- responsible to make food
- evaporate water molecules
- movement of oxygen and carbon dioxide in and out to plant
3. Stem
- transport water and nutrients from root to leaves.
- support leaves and branches
- in some plants are photosynthetic
4. Root
-provide support by anchoring the plant
- absorb water and nutrients for growth
- store sugars and carbohydrates to perform other functions
<span>the one that is not a factor that contribute to natural selection is : Population stability
population refer to the capability of a community to maintain its total amount of organisms within a specific period of time.
This has nothing to do with natural selection, which basically a nature's way to reduce the number of organism to findout which organisms are more adaptive</span>