To make the skin more flexible and remove wrinkles, ________ could be injected beneath a person's skin.
A. cellulose
B. laminin
C. proteoglycan
D. fibronectin
E. collagen
Answer: E
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Bryophytes are found:
A. where roots do not provide an advantage. B. throughout the world. C. where vascular plants do not have a competitive advantage. D. on rocks and trunks of trees. E. All of the answer options are true of bryophyte habitats.
The process by which Darwin came to the idea of evolution by natural selection was quick and based
on little evidence.
Indicate whether the statement is true or false.The action of a new drug is unknown, so you test various aspects of eukaryotic cell processes looking for an effect. You notice that the survival of cells exposed to this drug is very low
Further analysis shows that some proteins and mRNAs are much longer than they should be. One hypothesis is that the drug interferes with A) transcription termination signals. B) spliceosome activity. C) ribosomes. D) nucleoli. E) either transcription termination signals or spliceosome activity.
Genetic diversity arises as a consequence of ________, which produce(s) different alleles of a gene.
A. crossing over B. chromosome segregation C. gene swapping D. gene splicing E. mutations