(a) Chorion
(b) i) Umbilical arteries, umbilical veins/ capillaries
(ii) More food nutrients; more oxygen in veins; less food nutrients; more excretory products in arteries
(c) - Highly vascularized; large surface area
- Presence of secretory cells
d) Cushion or acts as a shock absorber of the foetus
johnmulu answered the question on May 12, 2017 at 06:32
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State three differences between the end products of mitosis and meiosis
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May 9, 2017
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May 9, 2017
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May 9, 2017
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May 9, 2017
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May 9, 2017
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May 9, 2017
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May 9, 2017
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May 9, 2017
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May 9, 2017
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May 9, 2017
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May 9, 2017
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Date posted:
May 9, 2017
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During which phase of meiosis does crossing over occur.
Date posted:
May 9, 2017
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Answers (1)
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May 9, 2017
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Explain why sexual reproduction is important in organisms.
Date posted:
May 9, 2017
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Answers (1)
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(Solved)
Fig 1 and 2 below represent reproductive organ of plants and an animal respectively.
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Fig. 1:...
Fig. 2...
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Date posted:
May 9, 2017
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Answers (1)