The first step in the scientific process is:

a. setting up a laboratory.
b. conducting experiments.
c. making observations.
d. inducing a testable hypothesis.
e. using deductive reasoning.


C

Biology & Microbiology

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The process of replica plating was designed to test if mutations occurred in response to a selective agent or if mutations were naturally present in the population before selection

Indicate whether the statement is true or false

Biology & Microbiology

A male sea lion is very large in comparison to its female counterparts and has a large sagittal crest on its head. What is this an example of?

a. Sexual dimorphism b. Type specimen c. Sexual variety d. Isolating mechanism

Biology & Microbiology

Which of these is a tRNA? The figure shows a process of translation. Each letter marks a definite structure.

A marks the thread, to which the ribosome is attached. This thread is the base of the translation. B marks the structure, which is bonded with Gly and is located inside the ribosome. C marks the structure, in which the translation happens. D marks the thread, which is formed by the translation. Letter E marks the structures, which are constituent elements of the forming thread.

Biology & Microbiology

Which statement is TRUE regarding ATP synthesis in oxygenic phototrophs?

a. Cyclic photophosphorylation does not occur in oxygenic phototrophs. b. Cyclic photophosphorylation occurs only when there is sufficient NADH-reducing power. c. Noncyclic photophosphorylation does not occur in oxygenic phototrophs. d. Noncyclic photophosphorylation occurs only when there is sufficient NADH-reducing power.

Biology & Microbiology