The Three-Domain System of classification is based on differences in which one of the following molecules?
A) mRNA
B) peptidoglycan
C) rRNA
D) tRNA
C) rRNA
D) tRNA
You might also like to view...
Which of the following statements about plant reproduction is incorrect?
A. Monoecious plants can have male and female flowers on the same plant. B. Dioecious plants have male and female flowers on different plants. C. Self-pollinating angiosperms are usually adapted to stable habitats. D. Outcrossing promotes genetic diversity. E. Self-pollinated plants must be visited by pollinators for fertilization to occur.
Epiphytes are
a. plants that are not parasites but that do grow on other plants instead of the soil. b. plants that trap animals and digest them. c. parasitic plants that use mycorrhizae to obtain nutrients and food indirectly from other plants. d. plants that deal with nutrient-deficient soil by growing a large, netlike mesh of roots through several layers of the soil. e. parasitic plants that use haustoria to obtain nutrients and food directly from other plants.
Alleles are described as ________
A) homologous chromosomes B) environmental factors that affect gene expression C) alternate versions of a gene D) alternate phenotypes
How can Red Imported Fire Ants harm you?
a. They bite b. They sting c. They have venomous hairs d. Both a and b