Where air pollution is not especially severe, predators have much more impact on leaf-beetle populations than parasites do
A single point mutation in the DNA near the lactase gene changes the cytosine (C) nucleotide to a thymine (T). Individuals with the thymine (T) nucleotide are lactose tolerant and can digest the milk products in adulthood.
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Answer :Neutral
Explanation: Ability keeps them from growing over 4 feet. but does prevent Alzheimer's,diabetes,and cancer
Answer: Advantages: These locations are used to preserve different forms of plants and animals, both aquatic and non aquatic for a long time and to keep endangered species from going extinct.
Disadvantages: The proper facilities that would be needed for storing these animals could be very expensive. In other words, it requires alot of money. Secondly, animals and plants need to be properly tended to and this can be very time consuming.
Explanation:
Answer:
J. W. Tutt suggested that peppered moths were an example of natural selection.
Explanation: Before industrial revolution, the population of white peppered moth is high as compared to dark peppered moth because white peppered moth can't be seen at night by the birds. After industrial revolution, sooth is spread on the surface of the trees which make easy for the bird to see white peppered moth and feeds on them. Population of white peppered moth decreases while the population of dark peppered moth increased because they cannot be seen in the dark due to black color of sooth.
