The hormone erythropoietin acts to stimulate cells that are located in the ________ of an adult
A) blood
B) kidneys
C) spleen
D) red bone marrow
D
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The region within the prokaryotic cell where the DNA is located is known as the ________.
Fill in the blank(s) with the appropriate word(s).
Stem and root thickening in eudicots is
accomplished by ___ and is called ___ growth.
a. lateral meristems--primary b. lateral meristems--secondary c. apical meristems--primary d. apical meristems--secondary e. apical meristems--lateral
The term clade most closely refers to:
a. a class. b. the binomial system of classification. c. a mechanism of horizontal gene transfer. d. a subspecies of organisms does not include a subgenus. e. a group of organisms that share common characteristics inherited from a common ancestor.
Which organelle can be likened to a post office?
A. Golgi apparatus B. nucleus C. mitochondria D. endoplasmic reticulum E. nucleolus