Answer:
Frederick Griffith's discovery on the theory of genetics is credited to his experiment on mice. He subjected them to different strains of pneumonia bacteria. He concluded that there is an unidentified force that leads to the formation of different strains from what the mice were subjected to. This leads to the discovery of DNA, the carrier of traits. Scientist before did not know how the trait is passed on not until Griffith's experiment.
Explanation:
Carbohydrates are not important as a stimulus in the gastric phase of gastric secretion, whereas distension, peptides, and low acidity are.
Most viruses reproduce through a process called lytic infection. During lytic infection, a virus enters the host cell, makes a copy of itself, and causes the cell to burst, or lyse.
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Population growth is difficult to predict because unforeseen events can alter birth rates, death rates, migration, or the resource limits on population growth
Such policies could have a significant effect on global fertility rates.
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Answer:
Savanna, is a biome, dominated by grasses. It exhibit dry climatic conditions. This biome receives very little rain fall. The tree population is scanty in this biome. The Savanna biome is found in Australia, Africa, South America and India. The giraffe is an animal that feeds upon leaves, fruits and pods of tall Savanna trees. The giraffe is tall enough to reach the highest branches of the trees.
As, in the given situation, more giraffe feed upon the leaves of the trees closest to the ground until all the leaves or vegetation of the ground and closest to the ground cleans up. Members of the population which have taller neck will be able to thrive leaves growing at the top of the tree canopy. This feature is called as natural selection. This involves the survival of the individuals, which have traits suitable for changing environment. The giraffe which have comparatively long neck will have better advantage for survival than the others in situations of scarcity of food.
