Chart the path of sperm from production to exit from the body? What will be an ideal response?
Sperm travel through the following structures in this order: testis, epididymis, vas deferens,
ejaculatory duct, and finally out the body through the urethra.
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The ____ ion is required for ribozymes to become active and begin self-replication
a. ferrous iron b. ferric iron c. zinc d. magnesium Chapter 25 - The Origin of Life Cengage Learning Testing, Powered by Cognero Page 6 e. selenium
Mendel knew very little about genetics and nothing about genes or chromosomes. However, his law of independent assortment explains a fundamental phenomenon of genetics. What is that phenomenon?
a. formation of the cleavage furrow and separation of the two progeny in telophase b. crossing over during gametogenesis c. random sorting of the homologous chromosomes during metaphase I d. fertilization and formation of the zygote during sexual reproduction
The Ames Test uses______ to determine the ability of a compound to cause______.
a) Bacteria, AIDS b) Viruses, Cancer c) Bacteria, Cancer d) Viral cells, AIDs
The conversion of pyruvic acid to acetyl-CoA can be described as ________, because a molecule of CO2 is produced as a by-product.
A. decarboxylation B. amination C. respiration D. oxidation E. phosphorylation