Chalk deposits are formed from the ancient remains of apicomplexans
Indicate whether the statement is true or false
FALSE
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A strategy used by dissimilatory metal-reducing bacteria that enable their use of insoluble compounds as electron acceptors is to transfer electrons to the metal via external, intermediary compounds such as ________ found in the environment or ________. These compounds are collectively known as ________.
What will be an ideal response?
With minor exceptions, the genetic code
a. is the same for all living organisms and viruses. b. is specialized so that viruses have a different code from all living organisms. c. differs between different organisms and viruses. d. is the same for all viruses and for single-celled organisms, but is more complex in multicellular organisms. e. has three versions: one for viruses, one for single-celled organisms, and one for multicellular organisms.
The goal of xenotransplantation research is to produce transgenic animals that could ________
a. produce more food b. become human organ donors c. all of the choices d. produce vaccines
Wings of birds and butterflies have similar functions, but different evolutionary origins. They are:
A. physiological structures. B. homologous structures. C. phylogenetic structures. D. analogous structures.