Jss3 First Term Examination on Biology For 2023/2024 Academic Session

Welcome to your Jss3 First Term Examination on Biology For 2023/2024 Academic Session

(1) The nervous system is made up of ___&___

(2) which of the following is odd in the group

(3) ___' is another name for character

(4) the scientific study of heredity is called __

(5) ___ are rod or threadlike bodies found in the nucleus of a cell

(6) the unit of heredity is ___

(7) the washing away of plant nutrients beyond the reach of its roots is called____

(8) Environmental hazards include all except

(9) The removal of natural vegetation cover that protects the soil surface using fire is called ____

(10) The decrease of forest areas across the world is _____

(11) The route by which impulses passes through inorder to bring about a reflex action is termed____

(12) ___ is another name for cell body

(13) ____is a single long fibre arising from the cell body which almost touch the dendrites of adjacent neurones

(14) Any nerve composed of sensory and motor fibres is called

(15) The most specialized organ of the human body weighing about 1.4kg is called ____

(16) who is the father of genetics

(17) The law of independent assortment and the law of segregation is associated with which of these scientists

(18) The arachnoid mater of the brain is made of ___&___

(19) Which of the following is odd in the group

(20) Which of the following is odd in the group

Answer all questions from this section

(1) ____ is a matured sex which takes part in sexual reproduction

(2) ____ is another name for biological hazard

(3) The washing away of soil surface by running water or wind is called _____

(4) The nervous system is made up of the ____(5)_____ and (6) _____

(7) We have ___ types of nervous system

(8) An action initiated and controlled by conscious part of the brain is called ___

(9) The central nervous system consists of the ____ and (10) ____

Answer any three questions of your choice

(1) Write on the following

(2a) in a tabular form, state three difference between reflex action and voluntary action

(2b) Define reflex arc

(3) cross breed using Tt and Tt. Describe your results

(4) Define the following

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