Which of the following best describes a human sperm cell? (2 points). a. a diploid cell formed in the male testes. b.a diploid cell formed in the male penis. c. a haploid cell formed in the male penis. d. a haploid cell formed in the male testes

Which element is used in photosynthesis found in atmosphere and fixed by bacteria?

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

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.