Which is a hormone that reduces blood volume and pressure by pulling more water out of the blood and increases urine volume?
A) renin B) erythropoietin
C) atrial natriuretic hormone D) aldosterone
Answer: C
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Which of the following is not an amoeba?
A. Entamoeba histolytica B. Cryptosporidium species C. Acanthamoeba species D. Naegleria fowleri
Consider the cell cycle of a human cell. During G2, what is the state of the homologous chromosomes?
A. The homologous chromosomes have been pulled to their respective poles by the spindle apparatus. B. The homologous chromosomes have not been replicated yet. C. The homologous chromosomes are lined up on the equator of the cell. D. The homologous chromosomes are now in the haploid or n condition. E. The homologous chromosomes have all been copied through DNA replication and are beginning to condense.
An endergonic reaction can proceed only if it absorbs:a
randomly available free energy. b. less free energy than is released by a coupled exergonic reaction. c. more free energy than is released by a coupled exergonic reaction. d. less free energy than is released by a coupled endergonic reaction. e. the same amount of free energy that is absorbed by the enzymatic breakdown of proteins.
A snapdragon plant has red, pink, or white flowers, inherited in an incomplete dominance pattern. It can come in tall or dwarf (homozygous recessive) varieties. What is the ratio expected if you cross a pink tall (heterozygous) plant with a pink short
plant? A) 2 red tall : 2 red short : 1 pink tall : 1 pink short : 1 white tall : 1 white short B) 2 red tall : 1 red short : 1 pink tall : 1 pink short : 2 white tall : 1 white short C) 3 red tall : 3 red short : 1 white tall : 1 white short D) 1 red tall : 1 red short : 2 pink tall : 2 pink short : 1 white tall : 1 white short E) 1 red tall : 1 red short : 1 pink tall : 1 pink short : 1 white tall : 1 white short