The accompanying figure represents a chromosome at metaphase of mitosis. How many DNA molecules are present in this chromosome?
A) one
B) two
C) four
D) more than four
E) impossible to determine
B
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The first part of the large intestine is the cup-shaped ________
a. cecum b. appendix c. transverse colon d. ascending colon
A ____ is a pioneer organism.
A. shrub B. lichen C. tree D. raccoon
A traditional technique used to quantify specific types of microbes in natural samples, enrichment cultures, and food or water samples is known as the ________ ________ ________ technique.
Fill in the blank(s) with the appropriate word(s).
A parrot fluffs out her feathers and screeches when another female bird approaches. She is
Select one: a. communicating using only visual signals. b. sick. c. communicating using only auditory signals. d. communicating using visual signals and auditory signals. e. communicating using tactile cues.