Briefly explain the iron-sulfur world hypothesis and identify two pieces of evidence that support this hypothesis. What will be an ideal response?
The iron sulfide hypothesis states that early polymerization leading to the origin life occurred in cracks of the deep ocean floor that released hot water, carbon dioxide and minerals such as
iron and sulfide . Laboratory simulations of these hydrothermal vents have produced organic
compounds by iron and nickel sulfide catalysis of carbon monoxide and hydrogen sulfide.
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Which of the following types of plants form symbioses with cyanobacteria (thus allowing them access to usable forms of nitrogen)? Select all correct choices
A. mosses B. aquatic ferns C. eudicots D. cycads
Which of the following cells are activated by the release of interleukin-10 from the helper T cells?
A) cytotoxic T cells B) B cells C) natural killer cells D) macrophages E) mast cells
What would experimental results with very high statistical significance mean?
A) The hypothesis being tested is correct. B) The experiment had no bias. C) The experiment had proper controls. D) A true difference between treatment and control groups likely exists.
A set of disciplines that focuses on varying aspects of the living world falls under the category of ________
Fill in the blank(s) with correct word