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Freediving is an activity in which a person dives, sometimes to great depth, without the use of scuba gear. The diver must hold his or her breath for the duration of the dive. (The record depth, with no equipment such as diving fins, is 101 m; the official record time is over 11 minutes.) Historically, freediving has been used by pearl divers and sponge divers. Some freedivers hyperventilate (breathe rapidly and deeply) before diving. Hyperventilation can change the concentration of CO2 in the blood and may increase the length of time that a person feels like he/she can hold his/her breath.* How does hyperventilation affect blood pH?
1. It increases CO2 and decreases H in the blood, increasing pH.
2. It increases CO2 and H in the blood, decreasing pH.
Which of the criticisms would be addressed by using a swan-necked flask instead of the unsealed flask. Develop a hypothesis to consider how a decrease in precipitation on Darwin Island might affect beak size and develop a hypothesis to explain how a ..
How are nuclear DNA and mitochondrial DNA transferred.
Brown eyes (B) are dominant over blue eyes (b) in humans. If a brown-eyed man marries a blue eyed woman and they have three kids, and two of the three have brown eyes and other has blue, what would be the punnett square indicating so look like.
What are the steps in isolating the DNA from strawberries. What are the materials required to isolate DNA.
What is the estimated efficiency of cellular respiration for a mutant organism that produces only 29 mole of ATP for every mole of glucose oxidized, sooner than the usual 36-38 moles of ATP.
Earlier in 2010, the Pacific island nation of Samoa decided to switch from driving on the right to driving on the left. Why may these cause difficulties? Why is it complicated for a cell to change codon usage, say, switching a "stop" codon to a trypt..
Explain at least one historical extinction with parallels to the extinction threats facing the bog turtle. When allosteric effector X binds to enzyme #1, enzyme stops working. However, the speed of reaction can be altered by adjusting the concentrati..
In corn snakes, wild type color is brown. One autosomal recessive mutation causes hte snake to be orange and another causes snake to be black.
You are designing a new single-celled organism. Discuss the problems of size, getting molecules like nutrients and wastes in and out, temperature, energy and replication of genetic materials.
If a population with two alleles is at Hardy-Weinberg equilibrium and the frequency of one allele is 0.6, what is the heterozygote frequency.
What is the yield of ATP when each of the following substrates is completely oxidized to CO2 by a mammalian cell homogenate.
Using the data given in table below draw a Lineweaver-Burk plot.
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