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Receptor cells/Nerve endings; Perceive stimuli which are then transmitted as impulses; through the sensory neurone to the relay/intermediate neurone, the synapse to the motor neurone, to the target organ/gland for appropriate response.
Githiari answered the question on January 17, 2018 at 09:44
- During an ecological field work, a group of students caught 240 grasshoppers, marked them and then released them back to the study area. After one...(Solved)
During an ecological field work, a group of students caught 240 grasshoppers, marked them and then released them back to the study area. After one day they caught 160 grasshoppers and found that 40 were marked. Using the formula; P =F.C.M X S.C S.C.M Where P =Total population F.C.M = First capture marked S.C = Second capture S.C.M = Second capture marked.
a) Identify the method used to capture the grasshoppers
b)Name the instrument and chemical the students used to collect and mark the grasshoppers
c)State any one assumption the students made during the field work
d) The students observed the organisms and placed them into their correct phylum and class. Name the phylum and class
Date posted: January 17, 2018. Answers (1)
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A common species of rats has individuals with white, black or grey coats. During a study of a rat with white coat was crossed with a rat with black coat. Both parents were pure lines. All the offspring in F1 generation had grey coats. Using letter B to represent the gene type for black coat and W for white coat, answer the questions that follow.
a) Suggest a reason to explain why there were no white or black rats in the F1 generation.
b)Name one trait in human beings that is determined by multiple allele.
c)Name one genetic disorder affecting the human eye
Date posted: January 17, 2018. Answers (1)
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Date posted: January 17, 2018. Answers (1)
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Date posted: January 17, 2018. Answers (1)
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Differentiate between an ecosystem structure and an ecosystem function.(Solved)
Differentiate between an ecosystem structure and an ecosystem function.
Date posted: January 17, 2018. Answers (1)
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Date posted: January 17, 2018. Answers (1)
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Define the term ecosystem modulators.
Date posted: January 17, 2018. Answers (1)
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State two types of feedback mechanisms found in an ecosystem
Date posted: January 17, 2018. Answers (1)
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Date posted: January 16, 2018. Answers (1)
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A diploid cell was observed to have 46 chromosomes. How many chromatids would the cell produce at the end of meiotic cell division?
Date posted: January 16, 2018. Answers (1)
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At what stage of mitosis do chromosomes replicate to form daughter chromatids?
Date posted: January 16, 2018. Answers (1)
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Date posted: January 16, 2018. Answers (1)
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Date posted: January 16, 2018. Answers (1)
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State the significance of the following in evolution
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Date posted: January 15, 2018. Answers (1)
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Date posted: January 13, 2018. Answers (1)
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Date posted: January 10, 2018. Answers (1)
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Date posted: January 10, 2018. Answers (1)
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Date posted: January 8, 2018. Answers (1)
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Date posted: January 8, 2018. Answers (1)
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Date posted: January 7, 2018. Answers (1)