-Earthworms eat by pulling food into their mouth with their prostomium (mouth) and pharynx which creates a very strong suction.
-The food is stored in the crop and then ground up into small digestible pieces in the gizzard.
-Earthworms need a gizzard because they do not have any teeth. Nutrients are absorbed in the small intestine.
jim items answered the question on February 18, 2019 at 07:26
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Date posted: February 18, 2019. Answers (1)
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a)Define.
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a)Define.
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c)Examples.
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(ii)Explain what happens if a clot forms in a blood vessel in the head.
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(c)Name two proteins that are involved in clot formation.
Date posted: February 15, 2019. Answers (1)
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Date posted: February 15, 2019. Answers (1)
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(c)Palisade mesophyl.
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(a)Petiole.
(b)Veins.
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Date posted: February 15, 2019. Answers (1)
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Two pieces of raw potato chips A and B were placed in two different solutions in petridishes and left to stand for thirty minutes. At the end of the experiment, A was soft and a bit shrivelled, B was turgid and had increased in size.
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(b)Account for the observations made in each case.
Date posted: February 15, 2019. Answers (1)
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Date posted: February 15, 2019. Answers (1)
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(b)Haploidy and diploidy.(Solved)
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Date posted: February 15, 2019. Answers (1)
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Date posted: February 15, 2019. Answers (1)
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Date posted: February 15, 2019. Answers (1)
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Date posted: February 15, 2019. Answers (1)
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(b)Give two differences between aerobic and anaerobic respiration.(Solved)
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Date posted: February 15, 2019. Answers (1)
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Date posted: February 15, 2019. Answers (1)
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-Body covered with a hard exoskeleton made of chitin.
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-Jointed appendages.
-Body covered with a hard exoskeleton made of chitin.
-Lay eggs which later hatch into young ones.
-Has compound eyes.
-Body is segmented.
(a)Name the phylum to which the organism belongs.
(b)To which class does the organism belong?
(c)Give an example of an organism that belongs to this class.
Date posted: February 15, 2019. Answers (1)
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