Choose from the following the worst form of marine pollution.
a. effects of oil in the oceans
b. slowly degrading chemicals
c. coastal mining booms
d. improperly disposed trash

Which description provides the best objective summary of the article in the passage?

The term life cycle includes the entire process of: adults defending their young providing a conducive environment adults producing gametes fertilization the growth of the offspring to adulthood

Which of the following would most directly interfere with sperm production? ingestion of a substance that mimicked inhibin interruption of sustentocytes' production of abp low sperm count use of synthetic steroids (testosterone)