13. How would the carbon cycle be disrupted if human activities released an extremely large amount of carbon dioxide into the atmosphere?
A. Plants would have more difficulty engaging in photosynthesis, and a massive
amount would die off.
B. Plants and animals in Earth's oceans would have more difficulty processing carbon
dioxide, and carbonification would not occur in deep marine soils.
C. Animals would have more difficulty breathing, and it would be years before the air
contained a healthy amount of oxygen.
D. Humans would have difficulty burning wood and fossil fuels, and it would take
years before the air contained a healthy amount of bicarbonate HELP ASAP FOR TEST

Suppose you are estimating the size of a blue crab population. what is the population size if the number marked in the first catch is 40, the total number in the second catch is 200, and the number marked in the second catch is 50?

The human genome project is devoted to mapping the general dna sequence of our species. this could lead to the development of new medicines, as well as the possibility of using gene therapy to treat certain diseases. however, there are some ethical issues surrounding the mapping of individual genomes. one concern is a) that your genes may change over time, making the project useless. b) that insurance companies could discriminate based on genetic make-up. c) that since this has never been done before, we should probably not do it now. d) that sequencing our individual genomes is so expensive, it is a counter-productive strategy.

The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return