Answer:
The white hair of a polar bear is an example of adaptation.
Explanation:
Adaptation allows organisms to adjust to their surroundings so that they can survive. Polar bears live in the Arctic region, which is one of the coldest places in our planet. They have sharp teeth and their ears are small to reduce the heat loss. They have a thick coat of insulated fur, which insulates their thick layer of body fat and keeps them warm. They have large paws, that are covered by fur which protects them from sinking in the snow and also provides a good grip on ice. Their coat of white fur helps them to hide from their prey by providing a camouflage in Arctic environments.
Answer:
1.The light-dependent reactions;
The light-independent reactions, or Calvin Cycle
2.Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP. The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation.
3.In production, a final product, or finished product is a product that is ready for sale. For example, oil is the final product of an oil company. The farmer sells his vegetables as his final product, after they have been through the whole process of growth.
Explanation:
Answer: A scientific question can be answered through an investigation. What is tested? Scientists call this an independent variable.
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A sarcomere is the basic contractile unit of muscle fiber. Each sarcomere is composed of two main protein filaments—actin and myosin—which are the active structures responsible for muscular contraction. The most popular model that describes muscular contraction is called the sliding filament theory.
"The density of a substance determines how much light is refracted"
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