According to the first law of thermodynamics,

a. matter can be created and destroyed.
b. matter only changes forms.
c. energy can be created and destroyed.
d. energy only changes forms.
e. matter and energy can be interconverted.


D

Biology & Microbiology

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The sea squirts and lancelets have an inner chamber that expels water. This chamber is called the

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Which of the following enzymes digests fats?

a. aminopeptidase b. disaccharidases c. amylase d. lipase e. trypsin

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Figure 13.7 Which offspring in the illustration above are homozygous recessive for both traits?

A. PPTT B. ppTT C. PpTt D. pptt E. PPtt

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Albinism is an autosomal recessive trait in humans. Assume that there are 100 albinos (aa) in a population of 1 million. How many individuals would be expected to be homozygous normal (AA) under equilibrium conditions?

A) 100 B) 999,900 C) 980,100 D) 10,000 E) 19,800

Biology & Microbiology