What cells secrete the proteins that make up the matrix of loose connective tissue?
A) hepatocytes
B) fibroblasts
C) chondrocytes
D) osteocytes
B
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In a genetic cross, there are n classes of data. What would the degrees of freedom be for a chi-square test on this data?
A. n B. n + 1 C. n - 1 D. 2n + 1 E. x(n) where x equals the number of individuals in the cross
What is a reason for the slow progress of manganese nodule mining? a. The lack of monetary value of the nodules
b. None of these choices. c. The lack of technology to mine them. d. The impending question of ownership of them.
What serves as the cardiac pacemaker?
a. sinoatrial node b. atrioventricular node c. gap junction d. the left ventricle e. conducting fiber
Doubling the chromosomes of a sterile species hybrid with colchicine or cold shock is a method used to produce a fertile species hybrid (amphidiploid)
Indicate whether the statement is true or false