Loose soil
They insert their anterior tip into a pore, extend their setae to anchor most of their body and then exert radial and longitudinal pressure. A cycle of alternating contractions and relaxations thrusts their body forward.
Dense soil
They invert their pharynx, exude lubricating mucus and suck obstructive soil into their body.
jim items answered the question on February 18, 2019 at 07:24
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One square foot of soil has an array of small invertebrates, hundreds, or even thousands of species, many of which are still unknown to science.Discuss...
(Solved)
One square foot of soil has an array of small invertebrates, hundreds, or even thousands of species, many of which are still unknown to science.Discuss at least 15 microorganism species showing their classification class.
Date posted:
February 18, 2019
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Answers (1)
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Giving their functions, state SIX enzymes involved in Eukaryotic DNA replication process.
(Solved)
Giving their functions, state SIX enzymes involved in Eukaryotic DNA replication process.
Date posted:
February 15, 2019
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Answers (1)
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Discuss the various evidences which show that evolution has taken place.
(Solved)
Discuss the various evidences which show that evolution has taken place.
Date posted:
February 15, 2019
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Answers (1)
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Outline FOUR main stages of DNA replication.
(Solved)
Outline FOUR main stages of DNA replication.
Date posted:
February 15, 2019
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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...
(Solved)
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.
(a)State the process that was being investigated.
(b)Account for the observations made in each case.
Date posted:
February 15, 2019
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Answers (1)
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In an experiment, a piece of brain was removed from a rat.It was later found that the rat had large fluctuation of body temperature. Suggest...
(Solved)
In an experiment, a piece of brain was removed from a rat. It was later found that the rat had large fluctuation of body temperature. Suggest the part of brain which had been removed.
Date posted:
February 15, 2019
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Answers (1)
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Distinguish between:
(a)Genotype and phenotype.
(b)Haploidy and diploidy.
(Solved)
Distinguish between:
(a)Genotype and phenotype.
(b)Haploidy and Diploidy.
Date posted:
February 15, 2019
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Answers (1)
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Briefly explain the meaning of apical dominance.
(Solved)
Briefly explain the meaning of the term apical dominance.
Date posted:
February 15, 2019
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Answers (1)
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Explain why Lamarck's theory of inheritance was discarded
(Solved)
Explain why Lamarck's theory of inheritance was discarded.
Date posted:
February 15, 2019
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Answers (1)
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(a)Define respiration.
(b)Give two differences between aerobic and anaerobic respiration.
(Solved)
(a)Define respiration.
(b)Give two differences between aerobic and anaerobic respiration.
Date posted:
February 15, 2019
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Answers (1)
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State the function of the deoxyribonuclei acid(DNA)molecule.
(Solved)
State the function of the deoxyribonuclei acid (DNA)molecule.
Date posted:
February 14, 2019
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Answers (1)
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State two roles of hydrochloric acid in the stomach.
(Solved)
State two roles of hydrochloric acid in the stomach.
Date posted:
February 14, 2019
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Answers (1)
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Differentiate between mechanical digestion and chemical digestion.
(Solved)
Differentiate between mechanical digestion and chemical digestion.
Date posted:
February 14, 2019
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Answers (1)
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List the main steps involved in nitrogen cycling in the order they occur naturally
(Solved)
List the main steps involved in nitrogen cycling in the order they occur naturally.
Date posted:
February 13, 2019
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Answers (1)
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What is the role of variation in evolution?
(Solved)
What is the role of variation in evolution?
Date posted:
February 8, 2019
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Answers (1)
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Why is mitochondria called power house of the cell?
(Solved)
Why is mitochondria called power house of the cell?
Date posted:
February 8, 2019
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Answers (1)
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Where do thermoreceptors for internal body temperature occur?
(Solved)
Where do thermoreceptors for internal body temperature occur?
Date posted:
February 6, 2019
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Answers (1)
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Discuss the main types of reproduction in Protists.
(Solved)
Discuss the main types of reproduction in Protists.
Date posted:
January 30, 2019
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Answers (1)
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Discuss the characteristics of protists basing your reference in microbiology.
(Solved)
Discuss the characteristics of protists basing your reference in microbiology.
Date posted:
January 30, 2019
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Answers (1)
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Discuss the THREE main importance of Fungi as used in biotechnology.
(Solved)
Discuss the THREE main importance of Fungi as used in biotechnology.
Date posted:
January 30, 2019
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Answers (1)