Given that CO2 is produced by cellular respiration, why does the amount of CO2 in the atmosphere remain relatively constant? (When answering this question, exclude the impact of human activities on atmospheric CO2.)
A) CO2 is converted to carbohydrates in photosynthesis.
B) CO2 is split apart during photosynthesis.
C) CO2 mostly forms carbonate rocks.
D) CO2 is trapped in dead organisms' bodies.
Answer: A
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Which species of bacteria can produce the highly useful Ti plasmid, used by biologists interested in genetically engineering resistant crops?
A. Phytophthora infestans B. Rhizobium radiobacter C. Striga puccinia D. Magnaporthe grisea E. Xylella fastidiosa
What was one of the primary results from the Hubbard Brook Watershed Project?
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One major difference between telophase of a mitotic cell and telophase II of meiosis is that only in meiosis do ________
a. new nuclear envelopes form b. chromosome clusters arrive at spindle poles c. haploid daughter cells result d. chromosomes decondense
You are a forester for the Wisconsin Department of Natural Resources and have been sent to Costa Rica to help treat a fungal disease that is killing many trees. Part of your data collection includes the aging of trees that have been killed by the fungus. Explain why the methods for aging trees in Wisconsin may not work well in Costa Rica
What will be an ideal response?