An adaptation is a characteristic that helps a living thing survive and reproduce. Natural Selection is the change in the characteristics of living things over time. A population consists of many different species. Charles Darwin developed the theory of evolution by natural selection.
Answer:terrestrial planet
Explanation:
Answer:
A product of photosynthesis and cellular respiration
Explanation:
Answer:
b. smoking can paralyze the ciliary escalator.
Explanation
Generally cilia in the respiratory tract of smoker will undergo paralysis for 1-3 hours after smoking, and generally paralyzed in chronic smokers.
This is because the toxins( the TAR) in the cigarette destroy the mucocilliary escalator that trapped inhaled pathogens in air as it passes through the bronchi and push them up with phlegm out of the respiratory tract.
Therefore ,with the loss of cilirary function, pathogens are retained in the lungs leading to respiratory tract infections
Answer: Carbon dioxide and energy (sunlight or light)
Explanation:
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.