According to the first law of thermodynamics, ____.
A. the energy of a system always increases
B. the amount of energy in the universe is changeable
C. chemical reactions do not create or destroy energy
D. energy is always stable
E. energy always decreases
Answer: C
You might also like to view...
Consider a population undergoing logistic growth. When are the most individuals added to the population per unit time? Why? (You may want to refer to Fig. 46.5.)
A. (K-N)/K = 1 B. (K-N)/K = 0.75 C. (K-N)/K = 0.5 D. (K-N)/K = 0.25 E. (K-N)/K = 0
Children born with fetal alcohol syndrome have
A. cognitive disorders. B. three copies of chromosome 21. C. a gap between the mouth and nasal cavity. D. a gap in the posterior region of the neural tube. E. All of the above.
Ionizing radiation includes all of the following EXCEPT
a. x-rays. b. cosmic rays from outer space. c. radio waves. d. visible light. e. microwaves
A mixture of DNA fragments is amplified from a sample of ocean water. Which gene(s) could be definitively categorized as originating from a species of animal?
A. Genes for ATP synthase B. Cell cycle regulatory genes C. Gene for Spongin D. Genes for biosynthesis of chitin E. Genes for RuBisCO