Identify the chemoreceptor(s) important for detecting possible toxic substances.
A. bitter
B. salty and sweet
C. sour
D. salty
E. sweet
Answer: A
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Which of the following is the main reason why pollen withstands decay much better than typical plant
parts?
a. hemicellulose b. sporopollenin c. lignin d. cellulose e. pectin
Joining a scion with useful fruit traits to a stock with useful root traits is called
a. fragmentation. b. protoplast fusion. c. somaclonal section. d. grafting. e. apomixis.
The movement of materials already in the phloem is described as ____
a. translocation b. declining pressure flow c. cohesion-tension d. active transport e. transpiration
When our ancestors were confronted by a saber tooth tiger, the ________ nervous system was responsible for "supercharging" their escape, while the ________ nervous system returned the body systems to normal after escaping the danger
Fill in the blank(s) with correct word