Hag fishes belong to which class
A. Actinopterygii
B. Cephalaspidomorphi
C. Chonrichthyes
D. Myxini
E. Sarcoptergii
Ans: D. Myxini
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Of the following media, which provides the NAD necessary for the growth of Haemophilus spp.?
a. 5% sheep blood agar b. Brain-heart infusion agar c. Chocolate agar d. Nutrient agar
The interaction between allolactose and the repressor protein results in a shape change known as a(n)
A) isomer. B) mutation. C) enantiomer. D) allosteric shift. E) transformant.
The ____ cells are stimulated by ____ to secrete testosterone
a. Sertoli; LH b. Sertoli; FSH c. Leydig; LH d. Leydig; FSH e. Sertoli and Leydig; LH
Identify and describe:A
three different ways in which leaves can be arranged on stems, and list one example for each. B. three different venation patterns in leaves and whether each is characteristic of eudicots or monocots. What will be an ideal response?