Erwinia carotovora is a species of bacteria that uses injectisomes to inject proteins into plant cells, ultimately causing tissue rot. E. carotovora is an example of a:
A. mutualist
B. pathogen
C. predator
D. decomposer
E. producer
B. pathogen
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Endosperm is found in:
A. angiosperms B. gymnosperms C. ferns D. mosses E. horsetails
Which mechanism(s) increase(s) genetic diversity?
a. crossing-over between chromosomes during meiosis only b. independent assortment of chromosomes during meiosis only c. random DNA mutations only d. crossing-over between chromosomes and independent assortment of chromosomes during meiosis only e. crossing-over between chromosomes, independent assortment of chromosomes during meiosis, and random DNA mutations
Thermoreceptors detect
a. chemical substances. b. pressure changes. c. temperature changes. d. light wavelengths. e. changes in solute concentration.
What are the three stages of photosynthesis? Which stages require light and which do not?
What will be an ideal response?