It would be "rr". This is due to the fact that recessive genes, like white-eyed, have to have a genotype with both recessive to show up.
Nicotine and cigarette smoke extract show acute physiological effects on lungs.
Explanation:
Cigarette smoke contains many chemicals that interfere with the body's method of filtering air and cleaning out the lungs. The smoke irritates the lungs and leads to overproduction of mucus. It also paralyses the cilia which results in accumulation of toxins and mucus, resulting in congestion of the lungs.
Tobacco smoke increases tracheal pressure, pulmonary artery pressure, systemic blood pressure and left atrium pressure. It decreases cardiac output and blood flow to the left lower lobe. It induces bronchoconstriction thus decreases peak flow in healthy subjects. It is also known to cause temporary slowing of mucociliary clearance of the lungs.
The energy that can be renewed again and again is known as renewable source of energy. Example : water, sunlight, wind et cetera.
The energy cannot be created again,once destroyed is known as non renewable source of energy.
The energy obtained from coal is non-renewable.
Energy obtained from burning plant waste is renewable
Energy obtained from water spring inside the earth is renewable.
Energy obtained from natural gas is non renewable.
Answer:
hemotrophs are organisms that obtain energy by the oxidation of electron donors in their environment. Chemoautotrophs use inorganic energy sources to synthesize organic compounds from carbon dioxide. Chemoheterotrophs are unable to utilize carbon dioxide to form their own organic compounds.
Explanation:
It would be sensible for the answer to be migration.