This layer of earth is made of liquid metal and creates a magnetic field around the earth.
pan...
Biology, 17.09.2019 23:00 richtercatrina16
This layer of earth is made of liquid metal and creates a magnetic field around the earth.
pangea
mantle
crust
core
Answers: 2
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What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen
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Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?
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1. which of the following transport mechanisms utilizes energy? a. osmosis b. diffusion c. facilitated diffusion d. endocytosis
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Biology, 22.06.2019 16:30
Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds that eat butterflies and moths, yet birds rarely eat the monarchs. likewise, the monarch caterpillars are brightly striped yellow and white and black, and they also are rarely eaten by birds, although some wasps will attack them and feed them to their young. what can be inferred from these observations? monarchs must threaten and attack birds, but not wasps. monarchs have a way of discouraging bird predation that does not involve hiding. monarchs’ wings are so colorful that most birds must find them difficult to eat. monarchs lay more eggs than other less conspicuous butterflies.
Answers: 2
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