In order, list the lenses path between a specimen viewed with a compound light microscope and its image on the retina of the eye.
What will be an ideal response?
Objective, ocular, lens of eye.
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Describe the tradeoff that exists between energy and water requirements for the production of uric acid and urea
What will be an ideal response?
A cell releases chemical signals into its surrounding space in order to communicate with neighboring cells. Which of the following must occur for the communication to be successful?
A) The chemical signal must bind to hormones on the neighboring cells B) The same chemical signal must be produced within the neighboring cells C) The neighboring cell must have the receptor to receive the signal
How do sponges differ from all other animals?
A) Sponges exhibit radial symmetry. B) Sponges are autotrophs. C) Sponges lack a true body cavity. D) Sponges lack true tissues.
Which of the following dilution schemes results in a 1:100,000 dilution? (Choose all that apply)
> Step 1: transfer 1ml from the original sample to flask A with 99ml diluent; step 2: transfer 1ml from flask A to flask B with 99ml diluent; step 3: plate a 0.1ml sample from flask B > Step 1: transfer 1ml from the original sample to flask A with 9ml diluent; step 2: transfer 1ml from flask A to flask B with 9ml diluent; step 3: plate a 1ml sample from flask B > Step 1: transfer 0.1ml from the original sample to flask A with 9.9ml diluent; step 2: transfer 0.1ml from flask A to flask B with 9.9ml diluent; step 3: plate a 0.1ml sample from flask B > Step 1: transfer 10ml from the original sample to flask A with 90ml diluent; step 2: transfer 10ml from flask A to flask B with 90ml diluent; step 3: plate a 1ml sample from flask B