The skin plays a key role in thermoregulation, or the regulation of body temperature. Which structures are involved in this process?
The sebaceous glands
Dermal blood vessels and sweat glands
Melanin, sebum, and keratin
All of the above
B. Dermal blood vessels and sweat glands
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Which hormone prevents the corpus luteum from degenerating?
A. LH B. FSH C. hCG D. progesterone E. estrogen
The concept of nuclear equivalence states that:a
all of the somatic cells in an adult organism have the same genes. b. the genes of the individuals of the same species are exactly the same. c. as cells mature, unneeded genes are lost. d. the nuclei of all organisms are the same. e. nuclei of individuals of the same species are the same size.
Dominant traits remove recessive traits when both are present in the same individual
__________________ Indicate whether the statement is true or false.
The fact that RNA can catalyze reactions necessary for replication gave rise to:
a. microspheres. b. biodiversity. c. protein synthesis. d. the RNA world hypothesis. e. the Urey-Miller experiment.