What do all deuterostomes have in common?
A) Adults are bilaterally symmetrical.
B) Embryos have pharyngeal pouches that may or may not form gill slits.
C) All have a spinal column.
D) All have specialized head and tail regions.
E) The pore (blastopore) formed during gastrulation becomes the anus.
Answer: E
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a. 1 b. 3 c. 6 d. 7 e. 9
Prophages can be activated into viral replication and enter the lytic cycle.
Answer the following statement true (T) or false (F)
What is the primary function of the leaf structure labeled as 5 in the accompanying figure?
a. food storage b. gas exchange c. photosynthesis d. nutrient absorption e. water transportation
Which offspring inherit all their mitochondrial DNA from their mother and none from their father?
A. both sons and daughters B. daughters C. sons D. neither sons nor daughters