A group of awesome students in Mrs. Dunlap's class were testing the amount of fertilizer that would best promote the growth of tomato plants in a garden.
Which of the following could be an unavoidable source of experimental error? *
genetic variation in the tomato plants
fertilization during the study
length of the study
cost of watering the plants

Which best summarizes the finding of avery? a. some traits are recessive. b. humans reproduce sexually. c. dna is a transforming factor. d. traits cannot be inherited.

Match each description to the appropriate biome. tropical savanna desert tropical rain forest taiga tundra has sparse vegetation and very cold temperatures located near the equator and contains trees that form dense canopy layers is very hot and dry, and has plants that need little water has cold winters, heavy snowfall and is dominated by conifers has warm temperatures and is dominated by grasses

Select the correct answer from each drop-down menu proteins are