Answer:
Rapid eye movement sleep (REM) may be defined as the the phase of the sleep that are unique to the mammals. This sleep is marked by the muscle tone.
The REM leads to the increase in pressure with deprivation. This leads to the increase in the rapid eye movement and plays an important role in the REM sleep and dreaming of the individual and quite necessary in the adult.
1- A light-dependent reaction
2-A cellular respiration
The answer is C.
Living organisms that live in the littoral zones in the ocean are used to frequent changes in temperature and in the salinity of the ocean water. For an organism to survive in this environment, it needs to have adaptive features that will increase its survival. The littoral zone is divided into three zones, which are high, middle and lower littoral zones. Organisms living in high littoral zone have adaptive features that make them more adapted to desiccation due to the long hours of sunlight to which they are exposed. The organisms are usually exposed directly to the air or they can be enclosed in burrows.
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Deforestation affects entire ecosystems, including the organisms that live in them.
In <em>rainforests</em>, deforestation has devastating effects. Wildlife diversity, for instance, tends to decrease as species are displaced from their natural habitats. Animals go to new places in search of shelter and food. In many cases, they die of hunger or are threatened with extinction due to the spread of diseases.
Deforestation also affects rivers, different streams of water and the soil. The soil, which provides essential nutrients for vegetation, is exposed to more sunlight and heavy rainfalls that erode it. Erosion makes the soil drier and infertile.
