Answer: Option B.
Geographic separation.
Explanation:
It is geographic separation that is common to both of them because
Sympatric speciation to occur when certain populations of species isolate reproductively from the the main populations because they can not longer interbreed with each other and they inhabit the same geographical location.
Allopatric speciation occur when two populations of the same species separate from each other geographically which can be as a result of one group of population move to another geographical location.
(D) It is especially important to protect biodiversity hot spots.
<h3>What is Biodiversity?</h3>
The variety and variability of life on Earth is referred to as biodiversity or biological diversity. A measure of variety at the genetic (genetic variability), species (species diversity), and environmental (ecosystem diversity) levels is called biodiversity.
Because of the warm environment and high primary productivity in the area close to the equator, the tropics typically have higher levels of biodiversity than other parts of the planet. Less than 10% of the earth's surface is occupied by these tropical forest ecosystems, which are home to 90% of all species. The mid-latitudinal belt of all oceans and the shores of the Western Pacific, where the sea surface temperature is highest, typically have higher levels of marine biodiversity. The variety of species exhibits latitudinal variations.
Learn more about Biodiversity with the help of the given link:
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Answer:
ok so
Explanation:
The role is
The Excretory system is responsible for the elimination of wastes produced by homeostasis.
The main structures are
The kidneys, large intestine, liver, skin, and lungs. They are part of the urinary system, which also includes the ureters, bladder, and urethra.
Maintaining homeostasis
Excretion is the process of removing wastes and excess water from the body. It is one of the major ways the body maintains homeostasis. Organs of excretion make up the excretory system. ... The kidneys maintain homeostasis by controlling the amount of water, ions, and other substances in the blood.
Ice has less density, which makes it float.
