Which term refers to muscles that are attached to bones, and cause bones to move at their joints when they contract?
A. smooth muscles
B. skeletal muscles
C. cardiac muscles
D. ligament tissues
E. involuntary muscles
B. skeletal muscles
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In different regions of the chromosome, the ratio of histone H1 to histone H2A may vary, but the ratio of H2A to histone H2B is generally the same
If the amount of H1 increases in a region of chromatin, what will be its effect on compaction of the DNA and transcription in that region? A. Transcription in that region will increase. B. Transcription in that region will decrease. C. The DNA in that region will become less compact. D. DNA compaction in that region will be unchanged. E. Transcription of the DNA in that region will remain the same.
Many protists and fungi share what characteristic?
a. They are heterotrophs. b. They are autotrophs. c. They are decomposers. d. They are prokaryotes.
When you collect a sand dollar on the beach, you are looking at the shell of an echinoderm consisting
of ossicles formed from calcium carbonate crystals.
Indicate whether the statement is true or false.The fossilized hominid that is considered the closest relative to Homo sapiens is
What will be an ideal response?