Biology, 24.04.2020 04:30, veronica022
Why are retroviruses considered a special class of viruses?
a. They leave behind mini-chromosomes when they leave a cell.
b. They carry their own RNA-RNA synthesis enzymes inside their capsids.
c. They transcribe RNA to DNA using reverse transcriptase.
d. They have a phospholipids membrane cloak.
e. They have an RNA genome.
Answers: 2
Biology, 22.06.2019 10:10, NewKidnewlessons
20 point pls brianliest 1. what does a red shift mean? blue shift? 2. describe the big bang theory. according to this theory, how old is the universe? 3. scientists believe the universe is expanding. what is the evidence that supports this? 4. describe a nebula. 5. describe the 3 types of galaxies. what is a barred spiral galaxy? 6. what is a light year? how far is alpha centauri from earth? 7. describe the universal law of gravitation. be sure to include gravitational force between two objects. 8. describe the planets’ orbits around the sun. 9. what is the asteroid belt? where is it located? 10. describe rotation and revolution of earth. what determines an earth day and year? 11. how do galaxies exist? 12. compare and contrast the inner and outer planets. 13. what causes the seasons?
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Biology, 22.06.2019 10:50, crosales102
Which type of transport is responsible for oxygen entering into blood cells? a. vesicle b. passive c. facilitated d. active b. passive
Answers: 2
Why are retroviruses considered a special class of viruses?
a. They leave behind mini-ch...
a. They leave behind mini-ch...
Geography, 29.06.2019 09:40
Mathematics, 29.06.2019 09:40
Mathematics, 29.06.2019 09:40