The statement, "The total amount of energy in the universe is constant," is a tenet of

A) the first law of thermodynamics.
B) the second law of thermodynamics.
C) thermodynamic spontaneity.
D) entropy.
E) enthalpy.


A) the first law of thermodynamics.

Biology & Microbiology

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In meiosis, homologous chromosomes are separated during _____

A) anaphase II B) prophase I C) mitosis D) anaphase I

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Malaria is caused by Plasmodium falciparum, a nonmotile protist that contains a cluster of microtubules at one end of the cell. Based on these characteristics, Plasmodium falciparum is classified as

A. a protozoan. B. a diatom. C. an alga. D. a slime mold. E. an apicomplexan.

Biology & Microbiology

The chromosome makeup of an individual organism is called a:

a. kinetochore. b. chromosome plot. c. centromere. d. karyotype. e. centriol

Biology & Microbiology

Which of the following has two polynucleotide strands?

A) Ribosomal RNA B) DNA C) Messenger RNA D) Transfer RNA E) RNA polymerase

Biology & Microbiology