Identify the role of carbon dioxide in photosynthesis.
A. It is split to release electrons.
B. It is split to become incorporated into sugars.
C. It is a by-product of the Calvin cyle
D. It is the final electron acceptor.
Answer: B
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A birth control implant is __________.
A birth control implant is __________. (Check all that are true) [A] inserted in the arm [B] about $10, and lasts up to three years [C] a matchstick-sized rod [D] able to prevent STDs.
The process of encoding genetic information into a functional part of the cell is called ________
a. translation b. mitosis c. gene expression d. replication e. transcription
There are nine coat colors known in foxes. If a red fox were crossed with a double-black fox, all the
hybrids would be red above and black below in a pattern known as a blended cross. If two blended crosses were mated, the F2 ratio would be as follows: 1 red, 2 smokey red, 2 cross red, 4 blended cross, 1 standard silver, 2 substandard silver, 1 Alaskan silver, 2 sub-Alaskan silver, and 1 double-black. (a) Using the letters A/a and B/b to serve as the genes for these animals, develop a genotype for each variety listed. (b) Two crosses will produce all blended-cross offspring. One is used above (red fox ? double-black); what is the other? (c) List the genotype and phenotype of all the pure-breeding foxes. (d) Give the genotypic and phenotypic ratio of a cross between two substandard silvers. (e) Give the genotype and phenotype of the offspring produced in a cross of 1 sub-Alaskan silver and a cross red. What will be an ideal response?
Fungi rapidly colonize leaves that fall into freshwater streams. They break down the cellulose in the leaves and absorb the glucose produced. In turn, the fungi serve as food for many insect species that consume the leaf litter; these insects cannot digest cellulose themselves, but gain the nutrients from cellulose indirectly. The insects then provide vital food for stream fish. Taken together, these relationships suggest that fungi __________
Fill in the blank(s) with the appropriate word(s).