Sex In The Caribbean: Environmental Change Drives Evolutionary Change, Eventually
For this project you should start by reading this article that describes some changes in organisms to geological stresses. Then write a paragraph that summarized the article. Paragraphs should be at least three well constructed sentences.Finally you should find and link to an article about one of the following:
1. Some process that drove evolutionary changes.
2. The ways organisms reproduce themselves.
3. Some details about any of the organisms mentioned in the article.
Finally write a paragraph summarizing the material in that article. Again, paragraphs should be at least three well constructed sentences.
1. Some process that drove evolutionary changes.
2. The ways organisms reproduce themselves.
3. Some details about any of the organisms mentioned in the article.
Finally write a paragraph summarizing the material in that article. Again, paragraphs should be at least three well constructed sentences.
Make sure you put your ID and class section on your work. This project is due by midnight Sunday, 10/25. Remember that you need to do either this or the next project. If you do both projects one will count for extra credit. If you want extra credit you must do this article.
If you have problems, email me at aphsbio at gmail.com.
If you have problems, email me at aphsbio at gmail.com.
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ReplyDeleteThis article says that the Caribbean Sea was separated from the Pacific Ocean. The Caribbean had a major change take place. It went from very high nutrient waters to poor nutrient waters. Due to the change in environmental change Conal Bryozoans disappeared from the fossil record as they had predicted. Those that did survive did it by becoming robust to stop the chances of fragmentation.
ReplyDeleteInteresting
The article that I found is about Cupuladriid Bryozoans. They reproduce form cloning or by sex which depends on the environment they are in. Nutrient rich environments tend to support the cloning strategy better. The closure led to the extinction of these. After this they were replaced by Bryozoans that reproduced mainly by sexual reproduction. This works better under nutrient poor environments. Scientist note that extinctions can be dragged on and on years after an even has already happened.
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RM
The article provided by Science Daily, described the change in species relative to the change in environment. When the Pacific Ocean became separated from the Caribbean, the species that reproduced clonal, were destined to be extinctthe Reason for this was because with the Volcanic activity it made the water nutrient poor and acidic. Since clonal organisms need nutrients to fragment, and reproduce they could no longer do this because the water did not have the amount of nutrients needed to survive. With this change in emviorment, in order to survive the organisms adapted and changed to sexual reproduction. Organisms that reproduced sexually could survive with the poor nutrients in the water. In consequence of the change, the clonal bryozoans disappeared from the record of the Caribbean. To survive the organisms had to become large and robust to try and inhibit fragmentation, and adapt to reproduce sexually.
ReplyDeleteThe article that I read, discusses how the human changes the environment, and intern the processes of Evolution. At this point in time roughly two thirds of the land on Earth is covered in a form of man used, or made objects. The average annual plant and animal plant loss is estimated to be about 1%. Though some of this loss is natural, we the human race have largely contributed to the loss of plant and animal life. The way we change our environment effects the plants and animals and they have to adapt, to new environments or go extinct. In some cases animals have either gone extinct or nearly gone extinct due to humans changing environment, and the natural evolutionarily track of plant and animal life.
SC Yellow
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ReplyDeleteYELLOW
This article was about how sexual organisms replaced cloned organisms. 4.5 million Years the Caribbean changed organisms the size of peas changed to crystal clear. The point of the article was basically that original organisms adapted to a new environment and changed to sex producing organisms.
Parasites
This article is about how parasites are believed to have an important factor on how organisms sexually reproduce. Parasites sexually produce by keeping asexual organisms from getting to “happy”. This eliminates the asexual organisms because the parasites wipe them out by creating a copy of themselves. The parasites then became infectious and spread out by reproducing rapidly. In the end, scientists believe that the parasites are the reason why we mate sexually today, through evolution.
This intersesing article Sex In The Caribbean: Environmental Change Drives Evolutionary Change, Eventually on www.sciencedaily.com explains how clonal organisms in the Cariibean Sea had to be replaced by hungry, sexual orgamisms in order to survive. If they had not they would become extinct. They believe this had to occur due to the Ishmus of Panama in the sea rose, seperating the Caribbeean from the Pacific.
ReplyDeleteAN article I found that related to this one was about how scientists believe that human evolution is accelerating. Scientists from the University of Wisconsin now believe that human evolution is on the move and is evolved at a rate 100 times faster in the last 5,000 years than ever before. According to these scientists, "Shrinking bodies and brains, were not signs of slowed evolution,instead this evolutionary change tells us size and physical power are no longer necessary to survive. Theories of the past believed that these changes in the human bodies and brains were based on the ideas that it is now easier to find food, humans lack predators, and have no competitors.
DL
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There are many things that contribute for evulotion that cause disant way of the genentic information that is gone in the sections of gene. The way change is it seperates from conenital drift, genetic mutations and selecting breeding. Makes it different for the change over million years. If posible they might hit each other again in millions of years. The studies show that these factors are consist in genentic information. They will envolve again in million years or maybe extienction. If they are having a bad enviroment or a bad time matting. Or there dominant factors are consist of bad problems.
ReplyDeleteAfter the Caribbean Sea under went a major change from the nutrient rich waters that went to the poor nutrient waters. The Caribbean was cut off from the Pacific Ocean and then new species appeared in fossils that had all sexually reproduced. And well produced fossils were either by cloning or by sex this has happened for 10 million years.
ReplyDeleteClick Here
Coral’s called polyps are usually grouped with limestone communities or reefs.
Polyps are soft bodied organisms like jelly fish there base is hard to protect from limestone and they are actually translucent animals. Some of the corals today have been growing for over 50 million years
After the Caribbean Sea under went a major change from the nutrient rich waters that went to the poor nutrient waters. The Caribbean was cut off from the Pacific Ocean and then new species appeared in fossils that had all sexually reproduced. And well produced fossils were either by cloning or by sex this has happened for 10 million years.
ReplyDeleteClick Here
Coral’s called polyps are usually grouped with limestone communities or reefs.
Polyps are soft bodied organisms like jelly fish there base is hard to protect from limestone and they are actually translucent animals. Some of the corals today have been growing for over 50 million years
VM red
This article explains that the evolutionary change occurring in the Caribbean has resulted in the difference of an organism’s ability to reproduce sexually. It is thought that this happened between 4.5 and 3.5 million years ago when volcanic eruptions caused a shift in tectonic plates, and blocked certain parts of the ocean off. This caused for many more organisms to evolve over time. Before, in the nutrient filled environment that these organisms had adapted to, they could clone themselves to reproduce, but as the waters changed, there were no longer enough nutrients for this to happen, and organisms had to learn to reproduce sexually.
ReplyDeleteAsexual reproduction is an example of organisms reproducing by themselves. This article, written by Vita Richman, explains several types of asexual reproduction, including regeneration, binary fission, and budding. Regeneration consists of an organism regrowing or regaining a body part after it has been removed, such as a starfish, which can reproduce one of its appendages after it has been severed. Binary fission involves two new cells coming from one original cell, and budding happens when an organism produces little buds off of it sides. These suggestions help create a picture of what may have happened in the Caribbean before evolution occurred.
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B4 Yellow
The article is about environmental changes in the Caribbean Sea. The organisms that couldn’t reproduce died. Scientists believe that the main reason organisms became extinct has already happened. From the fossils found by the group of scientists they believed that there was an organism named cupuladriid bryozoans, which where like coral but they had walked along the ocean floor and they reproduced by cloning or by sex.
ReplyDeletebrain evolution
Scientists discovered that proteins found in human brains for signaling learning and memory are found in yeast, which these happen from stress of limited food source or environmental changes. They also found out the expressing proteins that occur in vertebrates allowed a pool of proteins, used to make up different parts of the brain, like the cortex, the cerebellum, and the spinal cord. Also they found that mutations with disrupted synapse genes provide information to support the conclusion that the synapse proteins that evolve in vertebrates cause an increase in ranges of behavioral including those with high mental functions by behavioral studies from animals.
CO
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This article has to do with the extinctions of certain species and the evolution of sexually reproducing organisms. The extinction of the old species brought along new sexually reproducing species into the Caribbean. If there is a lack of nutrients the organisms called bryozoans will separate into smaller organisms reproduce using their female and male for forms. If there is a surplus of food then bryozoans clone together to reproduce.
ReplyDeleteMost freshwater fish lay their eggs and then fertilize them in the spring. The male does all of the fertilizing, there are often two males one who fertilizes and one who guards the nest. The males cant leave the nest because if they do, something might eat the eggs. Sometimes the male would accidentally eat the eggs.
http://findarticles.com/p/articles/mi_m1272/is_2685_130/ai_87706334/
Alexa Dragonetti red
closure of the isthmus of manima was caused by the volcanic and tectonic events.3.5 to 4.5 million yeas ago, becasue the caribbean was seperated frim the pacific the clonal bryozoan rapidly dissapeared due to the isolation.Some species survived by rapidly reproducing and otherswent extinct
ReplyDeletehttp://www.sciencedaily.com/articles/c/caribbean_monk_seal.htm
The Caribbean monk seal now extinct once lived in the native to the caribbean sea and the gulf of mexico.
mc red
Sex in the Caribbean
ReplyDeleteThis article is about how the environmental change has forced coral and other species to either clone itself or somehow have sex and reproduce in order to survive. The fossils at the bottom of the sea floor show that Cupaldrid Bryozoans reproduced either by cloning or by sex. 10 million years ago in the Caribbean is what scientist Jeremy Jackson, at the Smithsonian museum, says about the timing that the reproduction occurred and to this date.
Critical Parrotfish
This article is about how damaged coral reefs will decline within the next 50 years. Coral reefs are starting to become overrun with seaweed and decline in population. A team of scientist wanted to test whether reefs that are overgrown with algae could return with good health if the original causes of the problem, such as fishing and pollution. A type of fish that is known to be protectors of coral reef is Parrotfish. These fish are starting to go extinct and need to be preserved in order to save coral.
J.H
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Sex in the Caribbean
ReplyDeleteThis article is about how the environmental change has forced coral and other species to either clone itself or somehow have sex and reproduce in order to survive. The fossils at the bottom of the sea floor show that Cupaldrid Bryozoans reproduced either by cloning or by sex. 10 million years ago in the Caribbean is what scientist Jeremy Jackson, at the Smithsonian museum, says about the timing that the reproduction occurred and to this date.
Critical Parrotfish
This article is about how damaged coral reefs will decline within the next 50 years. Coral reefs are starting to become overrun with seaweed and decline in population. A team of scientist wanted to test whether reefs that are overgrown with algae could return with good health if the original causes of the problem, such as fishing and pollution. A type of fish that is known to be protectors of coral reef is Parrotfish. These fish are starting to go extinct and need to be preserved in order to save coral.
http://www.sciencedaily.com/releases/2007/10/071031112907.htm
J.H
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