Biology, 19.10.2021 21:10, Jazminruiz0527
A researcher performs an experiment to study the effect of magnesium chloride, a component of fertilizer, on fish embryos. For the study, fish eggs are placed in two petri dishes labeled X and Y. In petri dish X, the researcher adds 100 mL of salt water and 6 g of magnesium chloride. Petri dish Y has only 100 mL of salt water and no magnesium chloride. After two days, the embryos developing in petri dish X have only one eye, while the embryos developing in petri dish Y have two eyes. Which conclusion does this experiment support?
A. Salt water in the environment affects the development of the fish embryos.
B. Fertilizers in the environment affect the development of the fish embryos.
C. Salt water in the environment affects the rate of hatching for the fish embryos.
D. Fertilizers in the environment affect the rate of hatching for the fish embryos.
Answers: 2
Biology, 21.06.2019 22:00, babyduckies37
How does the molecular clock work? a. it analyzes the brain functionality of two different species. b. it examines and compares the physical characteristics of two different species. c. it illustrates relationships between two different species. d. it compares the number of mutations that exist in the dna of two different species.
Answers: 1
Biology, 22.06.2019 09:00, microwave13016
The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)
Answers: 1
Biology, 22.06.2019 09:40, QueenMiah16
Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.
Answers: 1
Biology, 22.06.2019 16:00, russelllang606
Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.
Answers: 1
A researcher performs an experiment to study the effect of magnesium chloride, a component of fertil...
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