Biology, 30.06.2021 15:50 starfox5454
Caffeine is a natural insecticide, found in the seeds and leaves of certain plants, where it kills insects that feed on the plant. Caffeine is extracted for human consumption from beans of the coffee plant, from Kola nuts, and from the leaves of tea plants. Because it stimulates the central nervous system, it temporarily prevents drowsiness. Add caffeine's missing lone pairs to its structure. Draw the lone pairs of electrons.
Answers: 3
Biology, 22.06.2019 00:10, hannahkharel2
What are the formed elements (cell or parts of cell) in blood and what are their functions ?
Answers: 1
Biology, 22.06.2019 11:10, allisonpierce1787
Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water. b. they use chlorophyll and oxygen to make carbon dioxide and water. c. they use sunlight, water, and carbon dioxide to make sugars. d. they use sunlight, water, and oxygen to make chlorophyll.
Answers: 1
Biology, 22.06.2019 15:00, rgilliam3002
Pls me i need this ! each cell has genes activated depending on it's job and what kind of cell it is. it is the presence of that causes the repressor protein to fall off and unblock the gene on the lac operon. if a gene is turned on then it is being an additional circular chromosome found in some bacteria that is used in genetic engineering.
Answers: 2
Biology, 22.06.2019 18:30, cassidy100117
What are the two functions of the respiratory system
Answers: 2
Caffeine is a natural insecticide, found in the seeds and leaves of certain plants, where it kills i...
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