<u>Answer:</u>
In ecology, catastrophes permanently alter the physical structure of the existing environment.
<u>Explanation:</u>
- The ecological disturbances include flood, strom, plague, fires, earthquakes, tsunami, volcanic eruptions, climatic change and impact of humans on the environment like deforestation ,nuclear testing etc.
- These factors can have a visible impact on the structure of the earth and permanently alter the environment.
- The visible effects of these disturbances are global warming, extinction of selective species, change in the course of rivers, submergence of coastal areas, sudden movement of the tectonic plates and formation of sudden cracks on the earth's crust.
When a population of birds that are separated into a different area, they might find a different kind of bird and mate with them. likely they might get killed because of their way of eating and surviving.
<span>D is the correct answer. In the F2 generation, 1 in 4 plants have two alleles for the dominant trait, 2 in 4 have one dominant and one recessive alleles and 1 in 4 has two alleles for the recessive trait.</span>
Answer:
El Niño Events: results from weakening easterly trade winds. The easterly trade winds are driven by a surface pressure pattern of higher pressure in the eastern Pacific and lower pressure in the west. ... The weakened trade winds allow warmer water from the western Pacific to surge eastward, so the sea level flattens out.
Tropical weather pattern across the equator during El Niño. With a deeper thermocline and decreased westward transport of water, the sea surface temperature increases to greater than normal in the Eastern Pacific. This is the warm phase of ENSO, called El Niño.
Explanation:
