Determining the slope of the best-fit line for a data set of midparent versus midoffspring values by utilizing least-squares linear regression generates an estimate of heritability known as the ________
A) phenotypic variation
B) environmental variation
C) broad-sense heritability
D) narrow-sense heritability
D
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Which of the following does NOT have an effect on the amount of muscle tension that results from a muscle contraction?
a. the size of the motor units in the muscle b. how frequently the motor units are stimulated c. the type of bone to which the muscle is attached d. the number of motor units active at one time
The relatively simple excretory system used by flatworms consists of tubules called ____
a. nephrons b. hepatic tubules c. metanephridia d. Malpighian tubules e. protonephridia
What is the main difference between the haploid and diploid phases of animal and plant life cycles?
What will be an ideal response?
A thin filament of muscle is composed primarily of the protein
A. hemoglobin. B. myosin. C. myoglobin. D. actin. E. pectin.