Within any ecosystem, the two major food chains are the ________ food chain and the grazing food chain
Fill in the blank(s) with correct word
detrital
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Which type/s of hypersensitivities is IgG is involved with?
A. Anaphylaxis B. Both anaphylaxis and antibody-mediated. C. Both antibody-mediated and immune complex-mediated. D. Antibody-mediated E. Immune complex-mediated
What evidence supports the idea that some nuclei are totipotent?
a. Nuclei taken from the cells of an embryonic frog can direct a frog egg to develop into a tadpole. b. Nuclei taken from the cells of a frog embryo can direct any amphibian egg to develop into a tadpole. c. Nuclei taken from a different species can direct a tadpole egg to develop into a normal tadpole. d. Some cells are capable of undergoing unlimited cell cycles.
e. Some cells are capable of arresting their cell cycle at will.A research group wants to conduct an artificial selection regime for the soil microbiome associated with soybeans. What factor would create the most difficulty for implementing the plan?
A. The available seeds lack genetic variety for the soybean genome. B. The fields lie in just one county, lacking variability in sunshine levels or weather events. C. The soils available lack variety for which microbe strains are present. D. Whole genome sequences are not available for the majority of the soil microbe strains. E. Soybean genes that interact with soil microbes are poorly characterized.
Antibiotics exploit differences in structure between prokaryotes and eukaryotes in order to selectively attack pathogenic bacteria without affecting the human host. Unique features of bacteria that are targeted by antibiotics include __________.
Fill in the blank(s) with the appropriate word(s).