Ecotourism
d. increases biodiversity by providing income to areas that might otherwise be destroyed
Explanation:
Ecotourism refers to visiting of undisturbed natural areas.
Ecotourism is different from other tourism on the fact that it does not involve visit to an area which is maintained by humans.
Ecotourists spots are allowed to grow naturally so that they can drag people who really want to enjoy the nature.
Ecotourist spots are protected areas and taxes are levied on them.
Ecotourist spots call for tourists and gives native people ,a way of earning.
This forces the people to maintain these spots and hence biodiversity is conserved.
Answer:
Founders effect
Explanation:
In population genetics, the founder effect is the loss of genetic variation that occurs when a new population is established by a very small number of individuals from a larger population. It was first fully outlined by Ernst Mayr in 1942, using existing theoretical work by those such as Sewall Wright.
Answer:
1 2 and 3
Explanation:
Because it is like a food chain without the bacteria or woms many animals would be out of food.
Experiment that tests the effects of changing salt concentrations on regeneration of brain cells in Alzheimer’s patients.
Explanation:
Experiments are conducted on brain cells by first growing human embryonic stem cells in a Petri dish and then converting them to brain cells. later the Alzheimer’s disease was genetically engineered into those nerve cells through gene mutation.
When these cells are exposed to varying concentrations of salt solution, the cells with shrink or swell according to the concentration due to cellular osmosis.
The cells will undergo chemical changes due to this. The regeneration probabilities of nerve cells affected by Alzheimer’s disease can be studied by such experiments.
Answer:
Fault
Actually, faults are fractures in Earth's crust where rocks on either side of the crack have slid past each other. Sometimes the cracks are tiny, as thin as hair, with barely noticeable movement between the rock layers
Explanation:
