Answer:
An increase in the number of invasive species leads to a decrease in the diversity index. This species can alter the food web within an ecosystem by eliminating the local food sources leaving no food for the faunas. If plant diversity declines, the habitat would definitely lose its balance. The ecosystem would lose its balance. Plants are considered producers and are always the beginning of the food chain. Without plants, animals that consume plants will definitely decline it number; thus, also the consumers on top of the chain.
Explanation:
Answer: New individuals add their genes to the gene pool.
Genetic drift is a natural phenomena which supports evolution in this the allele frequencies of a population changes over generation.It occurs in all populations but the effect is more prominent in small populations. The selection of allele from the gene pool to be transferred to the next generation is a chance event. Genetic drift occurs when a few number of individuals establish a population. Therefore, new individuals add their genes to the gene pool is the main change that can happen in a small population that is the direct result of genetic drift.
The statement is - True.
The frost wedging is one of the processes that contribute to the physical weathering of the rocks. Basically, if the rock has a crack, water manages to get into that crack. On the places where there's winters and the temperature drops bellow zero, the water in the crack of the rock freezes. Because the ice is expanding, it creates a lot of pressure inside the rock. Because of this pressure, the rock eventually cracks into two or more pieces. There have even been recorded cases where this form of weathering resulted in explosion of the rocks, where the pressure inside the rock was so big, that it has literary exploded, but that is very, very rare.
Water enters the atmosphere through a process called evaporation. Evaporation occurs when liquid water, such as that in oceans, lakes, rivers, or even moist soil, absorbs energy from the sun and transforms into water vapor, which is a gaseous state.
The energy from the sun breaks the bonds between water molecules, allowing them to escape into the air as vapor. Once in the atmosphere, water vapor can rise and form clouds through a process called condensation, where water vapor cools and condenses back into tiny water droplets or ice crystals.
Eventually, these water droplets may coalesce and fall back to the Earth's surface as precipitation, such as rain or snow. This continuous cycle of evaporation, condensation, and precipitation is known as the water cycle, and it plays a crucial role in redistributing water across the planet.
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