Fibrinogen's main function is as an osmotic counterforce.
Answer the following statement true (T) or false (F)
False
Fibrinogen's main function is not as an osmotic counterforce but to assist during the process of clotting.
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Which of the following statements about the evolution of complex multicellularity is true?
A. Complex multicellularity evolved independently at least six times in different groups of organisms. B. Complex multicellularity evolved twice: once in the common ancestor of plants and fungi and once in animals. C. Complex multicellularity evolved once in the common ancestor of all eukaryotic organisms. D. Complex multicellularity evolved independently in prokaryotes and eukaryotes. E. Simple multicellular organisms evolved from complex multicellular ancestors.
What change does binding of the sperm membrane to the oocyte membrane elicit?
a. The oocyte dispels its nucleus. b. The oocyte begins cleavage. c. The oocyte completes meiosis II. d. The sperm returns back to the oviduct. e. The sperm releases a polar body.
In a Hardy-Weinberg population with two alleles, A and a, that are in equilibrium, the frequency of allele a is 0.1. What is the percentage of the population that is heterozygous for this allele?
A) 90 B) 81 C) 49 D) 18 E) 10
A nucleotide contains
A. glycerol and fatty acids. B. a base, sugar, and phosphate group. C. amino acids. D. an acid, base, and salt.