Maintaining a constant internal environment for all biological process is known as what?
a. regulation
b. homeostasis
c. adaptation
d. energy usage
b. homeostasis
Maintaining a constant internal environment for all biological process is known as homeostasis.
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Immediately after putting on a shirt, your skin might feel itchy. However, this perception soon fades due to _____
A) sensory adaptation B) accommodation C) reduced motor unit recruitment D) reduced receptor amplification
Molecules of extrachromosomal DNA in bacteria are known as
a) Golgi complexes b) lysosomes. c) plasmids. d) ribosomes.
Events that occur during transcriptional regulation in eukaryotes include
A. mRNA translation. B. chromatin conversion to a closed conformation. C. DNA replication. D. polypeptide synthesis. E. RNA processing and export from the nucleus.
The Retinoblastoma (Rb) protein blocks cells from entering the cell cycle by ______
(a) phosphorylating Cdk. (b) marking cyclins for destruction by proteolysis. (c) inhibiting cyclin transcription. (d) activating apoptosis.