Biology, 27.01.2021 14:00 smallp0720
Which best describes how the common cold spreads in the human body?
A. Viruses lie dormant for many weeks without replicating.
B. Viruses inject DNA into bacteria, which are killed.
C. Viruses replicate outside of cells and then enter cells.
D. Viruses replicate inside a cell and then burst out of the cell.
Answers: 3
Biology, 21.06.2019 20:00
Read the following scenario to answer the following question. in some zoos, rare crosses between a male lion and a female tiger have produced hybrid offspring called "ligers." male ligers are sterile but some female ligers are fertile. in the wild, lion and tiger ranges do not naturally overlap, making such a cross unlikely. furthermore, the solitary behavior of tigers and the social organizations of lions create behavioral differences. applying the biological species concept, the sterility of ligers reveals that a. lions are probably a subspecies of tigers b. tigers and lions are the same species c. a new species called "ligers" is forming d. tigers and lions are separate species
Answers: 3
Biology, 22.06.2019 04:10
How are the reproductive cycles of a fungus and a pteridophyte similar? a)both organisms form fruiting bodies that produce diploid seeds. b)both organisms produce haploid spores and exhibit diploid and haploid stages. c)both organisms reproduce sexually when two haploid hyphae fuse. d)both organisms exhibit a diploid stage and are only able to reproduce asexually.
Answers: 1
Biology, 22.06.2019 04:30
Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?
Answers: 1
Biology, 22.06.2019 08:50
You are observing different types of cells in your science lab. one cell has many chloroplasts. what is the most likely function of this cell? a. energy production b. photosynthesis c. reproduction d. digestion
Answers: 1
Which best describes how the common cold spreads in the human body?
A. Viruses lie dormant for many...
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