31. The graph below shows the effect of tempera- ture on the relative rate of action of enzyme X
on a protein
Relative rate
of action
10 20 30 40 50 60 70 80
Temperature (*)
Which change would not affect the relative
rate of action of enzyme X?
(1) the addition of cold water when the
reaction is at 50°C
(2) an increase in temperature from 70°C to 80°C
(3) the removal of the protein when the
reaction is at 30°C
(4) a decrease in temperature from 40°C to 10°C

What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.

Which statement best describes the relationship between an allele and a gene? question 1 a. an allele is a variation of a gene that can be expressed as a phenotype. b. an allele is the part of a gene that attaches to messenger rna molecules. c. an allele is a segment of a dna molecule that controls replication of a gene.

In which of the following relationships is one organism always benefited while the other organism is always harmed