Whales play an important part within the marine ecosystem, and if they were to disappear, the delicate balance of nature would be disrupted. According to Scitable, every time a whale dies, it leaves behind a carcass that provides food and vital nutrition for literally hundreds of marine life organisms. For instance, species of scavenger crustaceans and worms feast upon whale carcasses for sustenance.
Other species of fish, including sharks, also obtain food from a whale carcass. Without this bountiful source of food, certain parts of the ocean would cease to thrive.
Living whales also heavily contribute to the marine ecosystem in the form of whale feces. According to the Columbia Basin Fish and Wildlife News, a study found that whale feces is filled with rich nutrients that include nitrogen, which stimulates the growth of plants. Organisms, such as plankton, that feed the ocean food chain also benefit from tons of whale feces floating on the ocean's surface. The disappearance of this source of natural nitrogen is likely to have a negative effect on plant and food production.
An overpopulation of sea lions would quickly be evident as soon as the whales that prey on them vanished. Likewise, the economies of Canada and the United States would suffer from a lack of tourist dollars because whale watching is very popular.
i have the answer and it says C
Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. ... These new combinations result from the exchange of DNA between paired chromosomes. Such exchange means that the gametes produced through meiosis exhibit an amazing range of genetic variation.
https://www.nature.com/scitable/topicpage/replication-and-distribution-of-dna-during-meiosis-6524853
Answer:
Answered
Explanation:
When DNA is compacted by histone into 10-nm and 30-nm fibers, the DNA is unable to interact with proteins required for gene expression. Therefore, to allow for these proteins to act, the chromatin must constantly alter its structure. So, the process that contribute to the dynamic activity of methylation and phosphorylation of histone tails.
The two organs found in both frogs and humans are a heart and a pair of lungs.
<h3>Frogs vs Humans</h3>
Both humans and frogs have hearts. While human hearts have 2 ventricles and 2 atria, the heart in frogs has only one ventricle and 2 atria.
Lungs are present in humans as well as in frogs. The walls of the lungs in frogs are somehow thinner than that of humans. Also, while frogs can breathe through means other than their lungs, humans can only breathe with their lungs.
More on frogs and humans can be found here: brainly.com/question/497517
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