Growth hormones act indirectly to make the epiphyseal plate cartilage grow. What then acts directly to make it grow?
What will be an ideal response?
The growth hormone stimulates the liver to release a growth factor called somatomedin, which in turn controls the epiphyseal plate cartilage.
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Which of the following is NOT a property of enzymes?
a) Enzymes are catalytic proteins. b) Enzymes are highly specific. c) Enzymes are efficient. d) Enzymes are subject to a variety of cellular controls. e) Enzymes are irreversibly changed by the reactions that they catalyze.
The cones and iris are responsible for light refraction
Indicate whether the statement is true or false
The fact that the structures of cells vary widely reflects the specializations needed for their different functions.
Answer the following statement true (T) or false (F)
The choroid coat contains no ________.
A. photoreceptors B. muscles C. blood vessels D. melanin