Which is the following functions of an herbivore provides energy that becomes available to the carnivore that eats the herbivore?
A. death
B. cellular respiration
C. defecation
D. growth and reproduction
E. excretion
Answer: D
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A test procedure that applies a specific fluorescent dye-antibody complex to a slide to which the patient specimen has been applied is referred to as a(n):
a. solid-phase enzyme immunoassay. b. direct fluorescent antibody test. c. indirect fluorescent antibody test. d. radioimmunoassay.
Why is it advantageous for transcription factors to be multimeric and for their binding sites to be clustered?
A) The strength of the DNA-protein interactions is increased. B) The DNA sequence specificity of each DNA-protein interaction is increased. C) Each DNA-protein complex is better able to bind to RNA polymerase. D) Competition for binding between different transcription factors for the same regulatory region is decreased.
Which three organelles are involved in the glycolate pathway?
A) lysosome, chloroplast, rough endoplasmic reticulum B) mitochondrion, nucleus, lysosome C) peroxisome, smooth endoplasmic reticulum, chloroplast D) peroxisome, chloroplast, mitochondrion E) Golgi complex, peroxisome, lysosome
Mitotic Cdk-cyclin is active when it is
A) singly phosphorylated. B) acetylated. C) doubly phosphorylated. D) doubly methylated. E) cleaved by proteases.