After ingestion of a food particle, pH changes and enzymes contributed by the ________ will digest and hydrolyze the ingested particle in the phagocytic vacuole.
A. mitochondria
B. lysosome
C. endoplasmic reticulum
D. plasma membrane
Answer: B
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The ground tissue lacking in the primary eudicot root is:
a. pith b. periderm c. cortex d. vascular cambium e. pericycle
Activation of translation after fertilization occurs by
a. synthesis of new mRNAs. b. uptake of amino acids into the fertilized egg. c. binding of an activator protein to the 5? untranslated region. d. elongation of poly-A tails on mRNAs.
When a parent herring gull arrives at the nest with food, a chick will orient to and peck at the red spot on the parent's bill. The parent will then regurgitate the food into the chick's open mouth and the chick swallows it. What is this set of behaviors an example of?
A. innate releasing mechanism B. sign stimulus C. taxis D. stimulus-response chain E. fixed action pattern
If glycolysis is considered universal, which of the following illustrates that?
a. Glycolysis occurs in Archaea, Bacteria, and Eukarya. b. Glycolysis occurs in Archaea and Eukarya. c. Glycolysis occurs in Bacteria and Eukarya. d. Glycolysis occurs in Archaea and Bacteria.