Pulmonary artery carries blood rich in CO2 under high pressure; while pulmonary vein carry blood rich in oxygen from the lungs to the heart under low pressure
Kavungya answered the question on October 1, 2019 at 06:48
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Explain how a genetic trait is inherited in a mammal.
Date posted: October 1, 2019. Answers (1)
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Explain why a breastfeeding woman generally require more protein in her daily diet than a normal woman.
Date posted: October 1, 2019. Answers (1)
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Date posted: September 30, 2019. Answers (1)
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State four differences between mitotic and meiotic divisions.
Date posted: September 30, 2019. Answers (1)
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Mention two pieces of evidence which are advanced to support the view that end, products of photosynthesis are translocated in phloem.
Date posted: September 30, 2019. Answers (1)
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State two disadvantages that organisms with small surface area to volume ratio
experience over those with larger.
Date posted: September 30, 2019. Answers (1)
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Give the formula used to calculate surface area to volume ratio of an organism.
Date posted: September 30, 2019. Answers (1)
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Give the advantage of using low power magnification instead of high power when viewing specimens under a microscope.
Date posted: September 30, 2019. Answers (1)
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State the importance of egg being larger than sperm in vertebrates.
Date posted: September 30, 2019. Answers (1)
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Give three features in Irish potato tube that qualify it to be a stem tuber.
Date posted: September 30, 2019. Answers (1)
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a) Name the method described.
b) State the advantage of the...(Solved)
An organism can be used to control the population of a pest or disease causative organism.
a) Name the method described.
b) State the advantage of the method named in (a) above.
Date posted: September 30, 2019. Answers (1)
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Name the process which occurs in root hair cells that lead to absorption of water.
Date posted: September 30, 2019. Answers (1)
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the mouth until it is absorbed in the blood stream.(Solved)
Describe the digestion of a piece of beef rich in fat in human digestive system from
the mouth until it is absorbed in the blood stream.
Date posted: September 30, 2019. Answers (1)
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Describe how various endo-parasites are adapted for survival in their hosts.
Date posted: September 30, 2019. Answers (1)
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Giving examples differentiate between ecto-parasites and endo-parasites.
Date posted: September 30, 2019. Answers (1)
- Quantity of Urine passed per day was established in five mammals A, B, C, D and E of the same species in their natural habitats....(Solved)
Quantity of Urine passed per day was established in five mammals A, B, C, D and E of the same species in their natural habitats. The results are shown below.
(i) Which of the five Mammals was likely to be excreting Urine very rich in ammonia? Give a reason.
(ii) Which of the five mammals was likely to be living in a desert? Give a reason.
(iii) State two structural differences expected in the nephrons of mammals And D.
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Date posted: September 30, 2019. Answers (1)
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How is High pressure achieved in the kidney?
Date posted: September 30, 2019. Answers (1)
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State the principal requirement of filtration that forms glomeruli filtrate.
Date posted: September 30, 2019. Answers (1)
- In an investigation, the appropriate composition of plasma, glomerula filtrate and urine in a mammal was determined. The results were as shown on the table.
(a)...(Solved)
In an investigation, the appropriate composition of plasma, glomerula filtrate and urine in a mammal was determined. The results were as shown on the table.
(a) Account for the absence of;
(i) Plasma protein in glomerula filtrate.
(ii) Glucose and amino acids in urine.
(b) (i) From the above results, identify two types of wastes eliminated from mammalian
blood.
(ii) Other than excretion, give one other function of the mammalian kidney.
Date posted: September 30, 2019. Answers (1)
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State the advantages of the cell protoplasm being colloidal in nature.
Date posted: September 30, 2019. Answers (1)