A balloon inflated with helium is able to float toward the ceiling because
What will be an ideal response?
the balloon and the gas it contains weigh less than the air displace by the balloon
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Genetic information carried by a(n) __________ directs the synthesis of a __________ chain during
translation. Fill in the blank(s) with the appropriate word(s).
The basal metabolic rate per unit of body mass is highest in a
A) large endotherm. B) small endotherm. C) large ectotherm. D) small ectotherm.
The promoter sequence of DNA is located
A. behind the initiator codon. B. ahead of the initiator codon. C. immediately ahead of the gene. D. behind the gene.
During his voyage around the world, Darwin was inspired to think about evolution by ____________.
A. the works of others such as Lamarck B. fossils he collected C. studying adaptations of organisms to their environments D. the unique organisms he saw in the Galapagos islands E. all of the above