Which of the below are living descendants of the dinosaurs?
a. marsupials.
b. monotremes.
c. birds.
d. mammals.
e. amphibians
c
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Approximately what percent of the total number of plant species have had their genomes partially or
fully sequenced?
a. 0.01% d. 10% b. 0.10% e. 50% c. 1%
You are experimenting with a variety of lipids to determine their efficacy for use as drug delivery system liposomes. What is one feature of the individual lipid that would best ensure the use of a lipid for this purpose?
A) It must have a structure similar to cholesterol. B) It must be composed entirely of unsaturated fatty acids. C) It should be exclusively hydrophilic. D) It should be amphipathic. E) It should be exclusively hydrophobic.
In males, gonadotropin-releasing hormone stimulates the ____ to secrete ____
a. anterior pituitary; inhibin b. anterior pituitary; FSH and LH c. anterior pituitary; testosterone d. posterior pituitary; FSH and LH e. posterior pituitary; testosterone
Genetic information is translated into ____, which direct(s) the chemical activity of an organism
a. DNA b. carbohydrates c. lipids d. proteins e. inorganic material.