What is the key concept addressed by the question?
What will be an ideal response?
The question asks about the formation of
hydrogen bonds in water.
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The traits that Mendel studied were most often influenced by single genes
A. true B. false
Human populations have continued to grow because humans have increased Earth's ________ through agriculture, medicine, and technology
Fill in the blank(s) with correct word
The endosymbiotic theory states that ___________; one piece of evidence supporting this theory is the fact that ___________.
A. mitochondria and chloroplasts originated as ingested prokaryotes ... mitochondria and chloroplasts have their own DNA B. two organisms live in close association ... the two participating individuals are two different species C. the genomes of complex animals came in part from the genomes of invading pathogens ... the human genome contains the complete genomes of 120 viruses and 10 bacteria D. the first hereditary material was RNA ... mitochondria and chloroplasts have heredity based on RNA
Chromosomal islands have which of the following properties?
a. may be responsible for differences between strains of the same species b. may be flanked by inverted repeats c. may contain virulence factors d. all of the above