If you weigh yourself on a scale one morning, then eat four pounds of food during the day, will you weigh four pounds more the next morning? Why or why not? (Hint: What happens to the atoms from the food you ingested?)
What will be an ideal response?
No, you will not weigh four pounds more the next morning because only a small portion of the mass of the food will form components of the body. Much of the mass of food is either released as CO2 and H2O that are breathed out into the atmosphere or converted into materials excreted as waste products.
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If you were male and sent a biological sample to a DTC (direct-to-consumer) genetic testing service, it could tell you:
A. the possible ethnic origin of your Y chromosome. B. the possible ethnic origin of your X chromosome. C. the possible ethnic origin of your female relatives' X chromosomes. D. the possible ethnic origin of your autosomes. E. the possible ethnic origin of your Y chromosome, your X chromosome, and your female relatives' X chromosomes.
Of the different types of bryophytes, which has the sporophyte generation that lives the longest?
A. mosses B. hornworts C. quillworts D. horsetails E. liverworts
A phylogenetic tree is a diagram that describes a phylogeny. A phylogeny is
A. the evolutionary history of a species or group of species. B. the geographic distribution of populations in a species. C. the generations of individuals in a population. D. the distribution of species in a given area in time. E. a list of character traits of individual species set in a tree diagram.
Describe the differences between fast-twitch and slow-twitch muscle fibers
What will be an ideal response?