Biology, 17.07.2019 19:00, honestty21
Aresearcher is designing a laboratory experiment to determine whether the inorganic substance a affects the rate of a reaction between two colored liquids, x and y. when the reaction is complete, the liquid is clear. the reaction between x and y is similar to one used by manufacturers to produce certain chemicals in factories. which method would best answer his question about reaction rate and what will he find out about substance a? first, he should measure the final temperature of the liquid when x and y react without substance a. then, he should measure the final temperature when he adds substance a to x and y. he will find out if substance a is a catalyst. first, he should measure how long it takes for the liquid to become clear if x and y are mixed together. then, he should measure how long it takes if he also adds substance a to x and y. he will find out if substance a is a catalyst. first, he should measure the final temperature of the liquid when x and y react without substance a. then, he should measure the final temperature when he adds substance a to x and y. he will find out if substance a is an enzyme. first, he should measure how long it takes for the liquid to become clear if x and y are mixed together. then, he should measure how long it takes if he also adds substance a to x and y. he will find out if substance a is an enzyme.
Answers: 1
Biology, 22.06.2019 01:30, ayoismeisalex
Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.
Answers: 1
Biology, 22.06.2019 12:30, justijust500
Consider the equation s + o2 ? so2. what is the product? question 3 options: s so 2 s + so 2 o 2
Answers: 3
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