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Mazyrski [523]
3 years ago
11

Select the correct answer. During which stage of fetal development do the heart and lungs of a fetus become fully developed and

functional? A. first trimester B. second trimester C. fertilization D. third trimester
Biology
1 answer:
vovangra [49]3 years ago
7 0

Answer: B the second trimester

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no

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En una isla oceanica aislada hay una especie de pájaros , la mayoria de plumaje gris . Una variedad con manchas blancas constitu
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In the food web below, the cow is an example of A. a heterotroph. B. a predator. C. an autotroph. D. a producer.
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Select all the correct answers. Which two statements are true about energy transformations? Energy is never released from an obj
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3 0
3 years ago
If a plant cell is given only sunlight and water, it cant make sugars through photosynthesis why
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theres no co2</span><span>Sugar is made through photosynthesis by a chemical reaction within the plant’s cell.  Photosynthesis takes place in the chloroplast of a cell.  Light is absorbed into the cell by chlorophyll which is located in the chloroplast (an organelle in a plant cell.).  The chemical reaction that produces sugar is powered by the sun’s energy.  Carbon Dioxide, CO2, is absorbed by the plant through the stomata (small openings on the underside of the plants leaves) and water, H20, which is absorbed through the root hairs are combined together in a chemical reaction, which produces glucose, or the sugar that plants use for energy.  The chemical formula for the process is 6CO2 + 6H2O (+ light energy) =C6H12O6 + 6O2.</span>
3 0
3 years ago
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