Answers: 1
Biology, 21.06.2019 14:00
Alichen is an organism that structurally appears to be a single organism. but a lichen is actually two different organismsāa fungus and green algaeāliving together as one organism. the fungal partner derives its nutrition from the photosynthesizing algae. how does a lichen differ in its photosynthetic activity from elysia chlorotica, the sea slug thatās considered to be a photosynthesizing animal? a. in lichens, the fungi photosynthesize on their own, while elysia chlorotica forms a relationship with a photosynthesizing plant. b. in lichens, the relationship with the algae lasts throughout the life cycle, but in elysia chlorotica, the relationship occurs only during the immature juvenile stage of the slugās life cycle. c. lichens can photosynthesize only because of the living algal partner, while elysia chlorotica incorporates chloroplasts from algae into its cells. d. in lichens, the association between the fungi and algae is permanent, while elysia chlorotica associates with a photosynthesizing organism only when it requires food.
Answers: 3
Biology, 22.06.2019 00:00
How does a lytic infection differ from a lysogenic infection?
Answers: 1
Biology, 22.06.2019 18:30
Embryonic stem cells are cells derived from an embryo. these cells can be used to create new tissues for patients suffering from certain illnesses and disorders. which statement best summarizes why the use of embryonic stem cells could be seen as unethical? a. some people consider embryos to possess rights equal to those of fully developed human beings. b. extracting stem cells from embryos is a very energy-intensive process, which consumes resources that could be used elsewhere. c. embryos are difficult to obtain, so the monetary cost of using them for research outweighs their benefit. d. the process of extracting stem cells from embryos generates biohazardous waste that cannot be safely disposed of.
Answers: 2
Biology, 22.06.2019 19:00
Why does controlling transcription affect prokaryotic gene expression?
Answers: 3
Sun-->sagebrush-->jackrabbits -->coyotes
What would happen to this ecosystem if the amou...
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