Which of the following is true regarding a plant life cycle? a. the gametophyte phase is haploid. b. a gametophyte produces spores. c. the sporophyte phase contains one set of chromosomes. d. a sporophyte produces either eggs or sperm.

Which term refers to the total dollar value of the goods and services produced in a country in a year?

Under the soviet system, the government a. controlled all forms of communication. b. allowed newspapers to print whatever they wanted. c. controlled editorials but not the reporting of news. d. encouraged access to a wide variety of news sources. select the best answer from the choices provided a b c d

In a population that is in hardy-weinberg equilibrium, there are two possible alleles for a certain gene, a and a. if the frequency of allele a is 0.4, what fraction of the population is heterozygous? a. 0.40 b. 0.60 c. 0.16 d. 0.48