How does jasmonic acid contribute to the activation of the wound response in tomato plants?
A. It moves through the phloem of the plant until it reaches the wound site.
B. It produces a polypeptide that binds with membrane lipids.
C. It binds to enzymes in the gut of the predator.
D. It increases the energy available for the plants to fight the predator.
E. It signals gene expression, leading to the production of a proteinase inhibitor.
E. It signals gene expression, leading to the production of a proteinase inhibitor.
Jasmonic acids leads to the transcription of defensive genes.
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Which of the following enzymes is NOT produced by the pancreas?
a. amylase b. carboxypeptidase c. lipase d. pepsin e. trypsin
After mixing a heat-killed, phosphorescent (light-emitting) strain of bacteria with a living, nonphosphorescent strain, you discover that some of the living cells are now phosphorescent
Which observation(s) would provide the best evidence that the ability to phosphoresce is a heritable trait? A) evidence that DNA was passed from the heat-killed strain to the living strain B) evidence that protein passed from the heat-killed strain to the living strain C) especially bright phosphorescence in the living strain D) phosphorescence in descendants of the living cells
The extracellular matrix of animal cells ________
A) protects and support cells B) provides avenues for the exchange of DNA C) is a warehouse for the storage of extra lipids and carbohydrates D) is primarily a site of dead matter and waste materials
Populations ____.
A. are only limited by one factor at a time B. increase arithmetically C. may increase indefinitely D. are limited by the carrying capacity E. overcome limiting factors by increasing their biotic potential