Answer:b) Caenorhabditis
Explanation:
The C.elgans is a species of Caenorhabditis. It is a namatode which can be male or hermaphrodite. It lays 1000 of eggs which can be used for the purpose of research studies. These worms share common genes and molecular pathways like in humans.
Many of the genes present in C. elegans have functional counterparts as that of humans which makes them useful for determining the cause of human diseases. The mutant forms of genes of C.elegans can be used for screening the thousands of drugs. The genes have been used to determine the effects of ageing in humans, cancer, diabetes and other diseases.
Due to above reasons the C.elegans are considered as model organisms.
Answer:
Increased epinephrine secretion.
Special cells in the skin<span>, called melanocytes, make two different types of melanin, eumelanin and pheomelanin. ... Melanin helps </span>protect our skin<span> and hair by filtering out potentially harmful ultraviolet (UV) radiation from the </span>sun. The UV light from thesun<span> can </span>damage DNA<span> and cause cancer</span>
Answer:
Explanation:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by-products and ATP is energy that is transformed from the process.
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