What is the name for the type of hormone, secreted by the pituitary that regulates other endocrine organs?
A) tropins
B) somatostatins
C) somatotropins
D) growth hormones
A) tropins
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Which of the following organisms lack membrane bound organelles?
a. plants b. animals c. prokaryotes d. fungi
When a certain form of a trait increases the fitness of the individual, this allele will tend to ____ over time
a. affect the function of vestigial structures b. lead to extinction of the population c. be eliminated from the population d. decrease in frequency in the population e. increase in frequency in the population
Glucose is the most commonly used energy source by human cells because
A) this is the largest macromolecule available to cells for energy production. B) this monosaccharide yields the most energy of all macromolecules. C) fats and proteins yield too much energy for the cells to process. D) glucose is generally the most readily available substrate, derived from food or glycogen. E) no other macromolecule can be broken down enzymatically by cells to release energy.
Who are responsible for discovering the structure of DNA?
A. Francis Crick and James Watson B. Matthias Schleiden and Theodor Schwann C. Charles Darwin and Joseph Farman D. Anton van Leeuwenhoek and Theodor Schwann E. Theodor Schwann and Robert Hooke