When is sunlight most intense on Earth
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When the light is at a steep angle to the...
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Biology, 21.06.2019 14:50
Where do homologous chromosomes exchange genetic material through crossing over? a. chlorophyll b. centrosomes c. centromeres d. chiasma
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Biology, 22.06.2019 01:30
Which of these best describes what occurs during cytokinesis? a) the chromosomes are separated b) the cell begins to divide by replicating the chromosomes c) the cytoplasm is divided between the two new daughter cells d) the nucleus opens to allow the chromosomes to enter the cytoplasm
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Biology, 22.06.2019 10:30
Which of these is a provisioning service people get from the ocean
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Biology, 22.06.2019 11:30
Which of the following explains why a tree is often used as a model to represent the principle of common descent
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