Biology, 28.06.2019 06:30 estherboocx
The majority of earth's atmosphere is nitrogen, n2. the percentage of nitrogen in earth's atmosphere remains constant as prescribed by the law of conservation of matter and because it is a reasonably non-reactive gas. like carbon, nitrogen is cycled through earth's spheres. however, nitrogen can be converted into forms usable by plants and animals, either by lightning or bacteria. once converted to usable forms, nitrogen is able to cycle the rest of the way through the ecosystem. much like carbon, the recycling of nitrogen through earth's spheres relies heavily on what type of organism? a) autotrophs b) decomposers c) parasites d) producers
Answers: 2
Biology, 22.06.2019 05:00
Dna. we have heard that we are a product of our dna. but where is it? how do we "get" our dna? it is passed to us, from our parents, but in what form? several vocabulary words associated with inheritance are used interchangeably and sometimes, incorrectly. let's see if you can clear this up for someone just learning about inheritance and cell structure.
Answers: 2
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Biology, 22.06.2019 06:30
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Biology, 22.06.2019 08:10
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The majority of earth's atmosphere is nitrogen, n2. the percentage of nitrogen in earth's atmosphere...
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