Which of the following represents the sex chromosomes of a typical human female?
A. XY
B. XXX
C. XO
D. XX
D. XX
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Lysosomes are considered to be part of the endomembrane system because they _____
A) deposit end products of digestion in the endoplasmic reticulum B) facilitate movement between stacks of the Golgi C) are formed from products synthesized by the endoplasmic reticulum and processed by the Golgi D) are composed largely of phospholipids
The Cohesion-Tension Theory explains the role of ________ in long-distance water transport.
A. membranes B. transpiration C. sap movement D. plasmodesmata E. surface tension
The hormone ________ increases appetite
a. estrogen b. insulin c. leptin d. ghrelin
Upon finding a carcass, a raven will only call and attract other ravens to the food source if the ____
a. nearby ravens are relatives b. food source is large and plentiful c. food is found in a resident pair's territory d. food is found in his own territory e. food is being consumed by an animal of another species