Which ecosystem service is most closely related to the process of eutrophication?
A. habitat
B. pollination
C. recreation
D. genetic resources
E. nutrient cycling
Answer: E. nutrient cycling
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With which of the following is a signal-recognition particle (SRP) capable of interacting?
A. an SRP receptor B. a ribosome C. a signal sequence in a protein destined for
PC agar is a selective media for isolation of B. cepacia. What is the purpose of the polymixin B and ticarcillin in the media?
a. They provide nutrients to enrich the growth of B. cepacia. b. They cause color change in the media from yellow to pink. c. They inhibit growth of gram-positive and other gram-negative organisms. d. They stabilize the media to support growth if prolonged incubation is needed.
Independent assortment means that the ____
a. phenotypes are often a blending of two independent genotypes b. segregation of one gene pair depends on the segregation of another gene pair c. gametes produced must be heterozygous in all cases d. segregation of one gene pair occurs as if no other gene pair was present e. phenotypic ratio in F2 will be the same for dihybrid and monohybrid crosses
The ribosomes in chloroplasts are ________, and in cytoplasm they are ________
a. 70S / 70S b. 70S / 80S c. 80S / 70S d. 80S / 80S