The development of the endoplasmic reticulum and nucleus are explained by the endosymbiotic theory
Indicate whether the statement is true or false.
ANSWER: False - chloroplast, mitochondria
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Hox genes are known to be important for: (check all that apply)
_____ spatial patterning. _____ apoptosis. _____ cell metabolism. _____ cell-cell adhesion.
Protists do not constitute a kingdom because they do not share a unique common ancestor
Indicate whether the statement is true or false.
During the course of a reaction the reactants will become the ________
a. reaction b. substrates c. products d. enzymes e. ingredients
The four defining characteristics of chordates are
A. pharyngeal pouches, a dorsal nerve cord, a notochord, and a postanal tail. B. bilateral symmetry, segmentation, a well-developed coelom, and limbs. C. a dorsal hollow nerve cord, a notochord, bilateral symmetry, and mammary glands. D. a well-developed coelom, pharyngeal pouches, a notochord, and jaws. E. segmentation, a dorsal hollow nerve cord, pharyngeal pouches, and an amniotic egg.