Biology, 18.11.2020 17:30 lopezma152
Which observation suggested to Sutherland the involvement of a second messenger in epinephrine’s effect on liver cells?a. Enzymatic activity was proportional to the amount of calcium added to a cell-free extract. b. Receptor studies indicated that epinephrine was a ligand. c. Glycogen breakdown was observed only when epinephrine was administered to intact cells. d. Glycogen breakdown was observed when epinephrine and glycogen phosphorylase were combined.
Answers: 3
Biology, 22.06.2019 04:30
What is the similarities and differences between bacteria and eukaryote?
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Biology, 22.06.2019 10:30
In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.
Answers: 2
Biology, 22.06.2019 11:00
At which point is crust neither created nor destroyed? island chain mid-ocean ridge divergent boundary transform boundary
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Biology, 22.06.2019 13:00
How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?
Answers: 3
Which observation suggested to Sutherland the involvement of a second messenger in epinephrine’s eff...
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