Biology Revision for "O" level examinations

CSEC BIOLOGY 2017 - Paper 01

CSEC BIOLOGY- PAPER ONE (January 2020)

Click on the link below to view the answer sheet CSEC Biology Paper ONE answers

What is climate change?   Climate change  means a significant change in the measures of climate, such as temperature, rainfall, or wind, lasting for an extended period – decades or longer. The Earth's climate has changed many times during the planet's history, with events ranging from ice ages to long periods of warmth.  What’s different about this period of the earth’s history is that human activities are significantly contributing to natural climate change through our emissions of greenhouse gases . This interference is resulting in increased air and ocean temperatures, drought, melting ice and snow, rising sea levels, increased rainfall, flooding and other influences.  What cause climate change? Changes in the sun's intensity Volcanic eruptions, or slow changes in the Earth's orbit around the sun Natural processes within the climate system such as changes in ocean current circulation However, the current global aim is to tackle clima...

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Click on the links below to access Past CXC papers Human and Social Biology Paper 1 (2011) Human and Social Biology Paper 1 (2010) Human and Social Biology Paper 1 (2009)

Hello everyone. I know that there are thousands of you out there who are anxiously waiting your cxc grades. I really hope that your Grades are as you expect. However, it is not the end of the world if you did not achieve what you expected. There is always going to be another opportunity for you to excel. Never give up. Below is the link that you can use to log in to check your CSEC Grades. According to CXC the grades should be available from tonight at 22:00 hours (Today is 16th August). However, it is possible that students in Guyana might have some issue because the government may block it from students who did not submit their text book. We have to wait and see. Click on the link below to access the student portal CXC Student Portal: Student Results Best wishes everyone!

Biotechnology  is the application of biological organisms, systems, or processes by various industries to help in the improvement of the value of materials and organism such pharmaceuticals, crops, and livestock (ASC-Chemistry for life). Biotechnology is not a new concept. It can be dated back to more than 6000 years ago (Biotechnology Industry Taken from:  unidigest.com Organization) when man first began to breed and domesticate plants and animals. However, modern biotechnology involves more genetic engineering, where an organism's genome is altered. Because of this technology, Biotechnology may allow man to reshape the future of his planet. We may very well be able to reduce the imminent threat global climate change by modifying organisms so that they are better adapted to survive in their ecosystems, and improve quality of agricultural crops and livestock. With Genetic engineering, we may even be able to extend our lives, either by improving our diet and health care, ...