Damage to a joint cartilage is affecting which type of tissue?
A) fluid connective
B) dense connective
C) supporting connective
D) loose connective
E) adipose
Answer: C
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Cholecalciferol is synthesized within the
A) bone marrow of the skeletal system. B) splenic pulp of the lymphatic system. C) endothelial linings of the cardiovascular system. D) hypothalamus of the nervous system. E) epidermis of the integumentary system.
The plasma concentration of estrogen reaches a higher level during the follicular phase than during the luteal phase, despite the fact that the follicle and corpus luteum both secrete estrogen
Indicate whether the statement is true or false
RNA codons specify the amino acids that are used to make a protein. Mark each of the following statements concerning translation true (a) or false (b)
_____ A codon specifies a maximum of one amino acid. _____ Some amino acids are specified by just one codon, whereas others are specified by multiple codons. _____ The limitations of the genetic code are such that a single amino acid may be specified by no more than four codons. _____ Because there are four RNA nucleotides and each codon is three nucleotides long, there are 64 possible codons, each of which directs the ribosome to incorporate a specific amino acid into a growing polypeptide chain.
With regard to the validity of biomedical research in physiological studies, which statement is correct?
A. Although the individual variables may be the same in some animal species, the general homeostatic mechanisms are often very different. B. Although the general homeostatic mechanisms may be the same in some animal species, the individual variables are often very different.