In certain plants, some of the roots may be modified to carry out unusual functions. Which of these is an example of one of these special functions? Select all that apply.A) Help absorb oxygenB) Store food or waterC) Carry out photosynthesisD) Parasitize other plantsE) Discourage herbivores
What will be an ideal response?
A, B, C, D
Evolution has resulted in many types of modified roots. Please read Section 29.3 for a description of these modifications
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In R. radiobacter bacteria, the ____ contains bacterial genes that can be directly inserted into a plant's DNA
Fill in the blank with the appropriate word.
How would crowded conditions in cities favor spread of plague?
A. Plague is transmitted by rats-more people means more waste, and more waste means more rats. This would favor the spread of plague. B. Plague is transmitted by mosquitoes-more people close together gives an infected mosquito more chances to bite humans and transmit the causative agent, spreading plague. C. Plague is transmitted by infected fleas-these fleas may be found on rodents (such as rats). More people in an area means a greater chance of interactions with animals carrying infected fleas, increasing the spread of plague. D. Plague is transmitted by direct contact (e.g. skin to skin). More people in an area provides more chances for infected individuals to directly contact and infect other individuals, spreading plague.
The cetacean body is covered with fine hairs
Indicate whether the statement is true or false
A nauplius larva is characteristic of:
A. echinoderms. B. gastropods. C. molluscs. D. crustaceans. E. ctenophores.