<span>The double helix of dna is which level of structure? a.Primary
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Answer:
The correct option is 3
Explanation:
An experimental investigation would require an hypothesis, aim, methodology, results, discussion and conclusion.
The third option can be easily answered using the "requirements" above.
The hypothesis (null hypothesis) would be different types of grass do not affect how far a ball rolls
The aim would be to determine the effect of different types of grass on the movement of a ball
The methodology would involve identifying several playing grounds with different grasses and then rolling the ball with a constant force on the different grasses and then determining the eventual speed and distance traveled by the ball on those grasses which would serve as the results. Inferences can then be made from this results and then conclusions drawn subsequently.
Answer:
The correct answer is-a polysaccharide found in animals
Explanation:
Glycogen is a polysaccharide which is a highly branded form of amylopectin. In glycogen glucose residues are joined together by α1-4 glycosidic linkage and α 1-6 branching points occurs after every 8-10 glucose residues.
Glycogen is the main carbohydrate storage form of carbohydrates in animals. Glycogen is mostly present in liver and muscles. It breaks down into glucose and provide energy to the animal during the physical activity. Therefore glycogen is polysaccharide found in animals.
Answer:Plants use carbon dioxide to make food
Explanation: Carbon-dioxide plays a very important role in sustaining life on Earth.
Plants use carbon-dioxide and water for photosynthesis in presence of sunlight and chlorophyll to produce food and oxygen.
CO₂ + H₂O → O₂ + glucose (food)
This food is consumed by the animals and oxygen is used for respiration. Animals use energy from the food to do work and exhale back carbon-dioxide.
