The transparent covering of the front of the eye is the
A) cornea.
B) lens.
C) iris.
D) fovea centralis.
E) pupil.
A
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What will be an ideal response?
Which of the following is false of brightfield microscopy?
A) White light is utilized. B) Light passes through the object being examined. C) Phase-contrast microscopy is a variant of brightfield microscopy. D) Specimens are always viewed without being stained. E) Specimens usually must be fixed.
What happens when a seed absorbs water and causes the plant embryo to release gibberellin?
a. Glucose levels decrease as a direct effect of gibberellin on the endosperm. b. The aleurone starts expressing amylase inhibiting transcriptional repressors. c. A protein-rich layer of cells surrounding endosperm starts growing in response to the hormone. d. The endosperm absorbs the hormone. e. Amylase is released from the aleurone and breaks down starch in endosperm.
__________ refers to processes designed to induce
immunity.