logo




HOME

WAEC

NECO

NABTEB

Contact


WAEC 2020 REAL C.R.S / I.R.S QUESTION AND ANSWER EXPO READY - CLICK HERE
WAEC 2020 REAL LIVE CHEMISTRY OBJ & THEORY ANSWERS AVAILABLE NOW - CLICK HERE

WAEC 2020 REAL LIVE TIMETABLE AVAILABLE NOW - CLICK HERE

BE OUR JAMB CBT AGENT AND MAKE MONEY FROM IT CLICK HERE

Quick Contact
WHATSAP/SMS ONLY 08119011369


S/LEONE WASSCE PAGE

GHANA WASSCE PAGE

ANSWER PAGE


CONFIRMATION PAGE



« | »

NABTEB 2020 BIOLOGY VERIFIED QUESTIONS AND ANSWERS AVAILABLE

BIOLOGY+Obj
1DACDBCCBCC
11DBCCCBBACD
21AACDDDBACC
31DCCCDBCBAC
41AACADCCDBB

 

(1aii)
– Chloroplast: They contain chlorophyll which aid photosynthesis in green plants.
– Mitochondrion: It is the power house of the cell. They are site respiration or where energy is released from simple sugar.
– Vacuole: It contains cells sap which act as an osmoregulator by helping to remove excess water in cells.
– Cell wall: It provides protection and shape and mechanical support for the cell. It allow free passage of nutrients in and out of the cell.
– Lysosome: They are site for respiratory enzymes.
– Middle lamella: It serves as a cementing layer between the adjacent walls of adjacent cell
– Endoplasmic reticulum: It aids the transport of materials within the cytoplasm.
– Starch granules:They store starch for the cell.
– Golgi bodies: It functions in synthesis packaging and distribution of materials
– Cytoplasm: It is the site for most enzymatic reactions and metabolic activity of the cell. This is where cell expands and the growth of the cell takes place.
– Nucleus: It controls all the life activities of the cell. It stores hereditary information as it controls as DNA inside chromosome which take part in the cell division.
– Nucleolus: It produces the ribosomes for protein synthesis

(1b)
(i) Cell: It is the smallest unit of living organism. Single cell organism are called unicellular, organisms with many cells are called multicellular organisms.
Examples of unicellular organisms are Amoeba, euglena
Examples of multicellular organisms are fungi, muscles

(ii) Tissue: Groups of similar cells with common origin are clustered together to perform a specialised function. Examples mesophyll layer, bone, muscle

(iii) Organ: Is a group of similar tissues forming a layer in an organism which performs a specific function. Examples are leaves, roots, skin, eyes

(iv) System: It is a group of similar organs which work together to perform specific functions. Examples are shoot system, root system, digestive system, reproductive system

(1c)
(i) Osmosis aim to equalise forces inside cells and organisms as a whole spreading water, nutrients and necessary chemicals from areas that contain a high concentration to areas that contains a low concentrations.

(ii) All cells are enclosed by a cells membrane, which is relatively permeable. Molecules can move into or out of the cells by diffusion and active transport.
=====================================

(2ai)
Growth is the irreversible change in size of cells and plant organs due to both cell division and enlargement.

(2aii)
(i)Light
(ii)Temperature
(iii)Mineral nutrients
(iv)Water
(v)Humidity

(2aiii)
(i)Auxins
(ii)Gibberellins
(iii)Cytokinins

(2bi)
Germination is the process by which a seed emerges from a period of dormancy and begins to sprout.

(2bii)
TABULATE
-Hypogeal Germination-
(i) The cotyledons remain inside the soil
(ii) The hypocotyl does not elongate much. Instead, the epicotyl grows and takes the plumule above the soil
(iii) The terminal part of the epicotyl is curved in order to reduce damage to plumule by friction from soil particles.

-Epigeal Germination-
(i) In this type of seed germination the cotyledons come out of the soil
(ii) The cotyledons are brought out of the soil by the excessive growth of the hypocotyl.
(iii) The terminal region of the hypocotyl is curved to protect the plumule and cotyledons from friction of the soil.
=====================================

(4ai)
(i)Axon
(ii)Cell body
(iii)Dendrites

(4aii)

(4b)
(i) Medulla oblongata : It controls autonomic functions and connects the higher levels of the brain to the spinal cord. It is also responsible for regulating several basic functions of the autonomic nervous system

(ii) Cerebrum: The cerebrum controls the voluntary motor actions.
It is the site of sensory perceptions; like tactile and auditory perceptions.
It is the seat of learning and memory.

(iii) Cerebellum: It receives information from the sensory systems, the spinal cord, and other parts of the brain and then regulates motor movements. The cerebellum coordinates voluntary movements such as posture, balance, coordination, and speech, resulting in smooth and balanced muscular activity.
=====================================

(5ai)
Metamorphosis is defined as the series of gradual changes of forms and shape of an insect from the fertlised egg (immature stage)to adult (mature stage or adulthood)

(5aii)
(i)Complete metamorphosis
(ii)Incomplete metamorphosis

(5aiii)
(i)Complete metamorphosis: housefly, mosquito, butterfly,bees
(ii)Incomplete metamorphosis: grasshopper

(5bi)
(i)Ants
(ii)Termites
(iii)Bees and wasps
(iv)Wolves

(5bii)
(i)They live together in colonies
(ii)They show or display division of labour
(iii)They show distinct castes
(iv)Members communicates with one another within the colonies

(5biii)
(i)Crops pollination
(ii)Decomposing dead material to recycle nutrients
(iii)They can cause damage to humans. Some insects spread diseases, others can decimate our food supply.
=====================================

(6ai)
(i)Charles Darwin
(ii)Jean Lamarck
(iii)Alfred Russel

(6aii)
(i)Fossil records
(ii)Evidence from geographical distribution
(iii)Evidence from comparative anatomy
(iv)Evidence from embryology.

(6b)
(i)Iroko and mahogany: they have strong tap roots system and buttress roots which aid anchorage and support for the weight of the plants.

(ii)African walnut: These plants have broad leaves which aid transpiration and photosynthesis.

(iii)Obeche: They have tap roots system and large buttress roots for support as well as broad leaves to aid photosynthesis activities.

(iv)Orchid: these are epiphytes which have mechanism for storing water and absorbing moisture from air while growing on tree branches.

(6c)
(i)Water acts as living environment
(ii)Water is a metabolite for organisms in the tropical rain forest
(iii)Water as a temperature buffer
(iv)Water as a solvent

Categories: Nabteb

There is love in sharing

0 Responses

Leave a Reply

« | »




Jupeb, Jupeb 2019/2020 Chemistry ‹Questions, 2019 Chemistry Jupeb Questions, Jupeb 2019 Chemistry Questions, Jupeb 2019 Chemistry Answers, Jupeb 2019 Chemistry Runz, Jupeb 2019 Chemistry Expo, Jupeb 2019 Chemistry Expo/Runz, 2019 Jupeb Chemistry Obj Answers, 2019 Jupeb Chemistry Theory Questions, 2019 Jupeb Chemistry Obj And Theory Answers, 2019 Jupeb Chemistry Questions, Gidifans Jupeb 2019 Chemistry Answers, Examloaded Jupeb 2019 Chemistry Answers, Real Jupeb 2019 Chemistry Answers, Expoloaded Jupeb 2019 Chemistry Answers, Verified Jupeb 2019 Chemistry Questions, Free Jupeb 2019 Chemistry Answers., Jupeb, Jupeb 2019/2020 Chemistry ​Questions, 2019 Chemistry Jupeb Questions, Jupeb 2019 Chemistry Questions, Jupeb 2019 Chemistry Answers, Jupeb 2019 Chemistry Runz, Jupeb 2019 Chemistry Expo, Jupeb 2019 Chemistry Expo/Runz, 2019 Jupeb Chemistry Obj Answers, 2019 Jupeb Chemistry Theory Questions, 2019 Jupeb Chemistry Obj And Theory Answers, 2019 Jupeb Chemistry Questions, Gidifans Jupeb 2019 Chemistry Answers, Examloaded Jupeb 2019 Chemistry Answers, Real Jupeb 2019 Chemistry Answers, Expoloaded Jupeb 2019 Chemistry Answers, Verified Jupeb 2019 Chemistry Questions, Free Jupeb 2019 Chemistry runs, 2019/2020 neco runz runs, neco 2019/2020 answer verified" 2019/2020 waec gce runz, waec runz, waec gce runz, runz for waec and neco, nabteb runz, 2019/2020 nabtbe runs help, 2020 jamb cbt runz, jamb cbt runs, cbt runz, cbt 2020 runz , waec time table 2020/2019, waec gce 2019/2020 gce time table runz, examorigin.com.ng, examgreat.net, examkey.net, 2019 NECO EXPO, 2019 NECO ANSWERS, NECO 2019 EXPO, 2019 NECO ANSWERS, FREE NECO EXPO, FREE EXPO ON NECO, NECO 2019 EXPO FOR FREE, FREE 2019 NECO ANSWERS, 2019 NECO QUESTIONS, 2019 NECO ANSWERS, 2019 NECO EXPO ANSWERS,2019 NECO ANSWERS, 2019 NECO RUNS, FREE 2019 NECO ANSWERS, 2019 NECO RUNS, 2019 NECO ANSWER, 2019 NECO EXPO, 2019 NECO QUESTIONS, 2019 NECO QUESTIONS, NECO EXPO ANSWERS,2019 NECO EXPO, NECO 2019 ANSWERS, NECO 2019 ANSWER, NECO 2019 ANSWERS, NECO 2019 RUNZ, NECO 2019 ANSWERS, NECO 2019 EXPO, NECO ANSWERS 2019. 2019 NECO QUESTION AND ANSWERS | 2019 NECO ANSWER | 2019 NECO QUESTION AND ANSWERS | 2019/2020 NECO EXPO WEBSITE | 2019/2020 NECO ANSWERS | NECO ANSWER 2019 | NECO QUESTIONS 2019 | 2019 NECO ANSWER FOR ALL SUBJECTS | CHOCKS CONFIRMED ANSWERS FOR BIOLOGY MATHS ENGLISH CHEMISTRY ACCOUNTING COMMERCE GEOGRAPHY FISHERY PHYSICS ECONOMICS HISTORY COMPUTER CIVIC EDUCATION PHYSICS PRACTICAL BIOLOGY PRACTICAL BIOLOGY PRACTICAL PHYSICS PRACTICAL GOVERNMENT HISTORY CIVIC EDUCATION LITERATURE ECONOMICS FOOD AND NUTRITION ANIMAL HUSBANDRY DATA PROCESSING OFFICE PRACTICE TOURISM MATHEMATICS AGRIC SCIENCE PRACTICAL GEOGRAPHY PRACTICAL PHYSICAL EDUCATION 2019 NECO SSCE EXPO | 2019 NECO Exam Runz, NECO 2019 Runs, NECO 2019 Expo Site, Exam Runs, NECO 2019/2020 Runs 100% Correct Expo, NECO 2019 100% Real Expo / Runz, Best NECO 2019 Expo Site 2019 NECO EXPO | 2019 NECO RUNZ | 2019/2020 NECO QUESTION AND ANSWER | 2019 NECO RUNS | 2019 NECO SSCE EXPO ALL SUBJECTS QUESTION AND ANSWERS. 2019 NECO EXPO | 2019 NECO RUNZ |2019 NECO TIMETABLE |2019 NECO SPECIMENS | 2019/2020 NECO QUESTION AND ANSWER | 2019 NECO RUNS | 2019 NECO SSCE EXPO ALL SUBJECTS QUESTION AND ANSWERS 2019 NECO EXPO | 2019 NECO RUNZ | 2019/2020 NECO QUESTION AND ANSWER | 2019 NECO RUNS | 2019 NECO SSCE EXPO ALL SUBJECTS QUESTIONS 2019 NECO EXPO | 2019 NECO RUNZ | 2019/2020 NECO QUESTION AND ANSWER | 2019 NECO RUNS | 2019 NECO SSCE EXPO ALL SUBJECTS QUESTION AND ANSWERS AND ANSWERS 2019/2020 NECO Questions And Answers | 2019 May June Verified/Real Expo/Runz. NECO Assistance For Expo 2019/2020 Runz NECO RUNZ , Real NECO 2019 Expo site, Exam Runs, Free NECO Answers, Free , Free NECO Runs / Runz, NECO , NECO ,Trusted NECO , NECO 2019 Correct Expo, NECO ssce Runs, NECO Answers, NECO Exam Gce Assistance, NECO , Site, NECO Real Expo / Runz Download NECO SSCE QUESTIONS Below 2019 NECO RUNS RUNZ EXPO CHOCKS FOR 2019/19 SESSION NECO 2019/2020 Real Questions and Answers Expo Runz/Runs 2019 NECO Expo,2019/2020 NECO may/June ssce Real/Sure confirmed Questions/Answers/Expo/Runz 2019/2020 NECO Ssce Real/Confirmed Questions And Answers, Expo/Runz 2019/2020 NECO May/June Real Expo, Questions and Answers NECO 2019/2020 Questions/Answers /Expo 2019/2020 NECO Questions And Answers, Expo . 2019/2020 NECO Real/Confirmed Expo/Runz, Questions/Answers.Verified/sure 2019/2020 NECO Ssce may/June Question And Answers Expo/Runz. 2019/2020 NECO/Wassce Real Runz, Questions and Answers.2019/2020 NECO Expo, Questions and Answers. NECO 2019/2020 Questions and Answers Runz/Expo.2019/2020 NECO Ssce Expo. Verified 2019/2020 NECO subjects Questions/Answers, Expo/Runz. NECO 2019 Expo site, NECO Exam Runs, 2019 NECO Ssce Questions, 2019 NECO Answers, Verified , Trusted NECO , NECO 2019 Correct Expo, NECO RUNZ,NECO answers 2019 NECO answers for english NECO answers for mathematics 2019 NECO answers literature in english NECO answers for mathematics 2019 NECO answers 2019 NECO answers for biology 2019 NECO 2019 Answers,2019 NECO Expo,NECO 2019 Questions and Answers, Expo and Runs is finally out,Expo for NECO 2019 is Finally Out Today REAL NECO 2019 Questions and answers/EXPO Runz 2019 NECO 2019 Expo NECO Runs and Free Answers for 2019 Examination,Is NECO 2019 Free Expo Out,Is NECO 2019 Questions and Answers Released. NECO 2019/2020 Exam Expo – Runs – Chocks TAGS; NECO Exam Runz, NECO 2019 Runs, NECO 2019 Expo Site, Exam Runs, NECO 2019/2020 Runs 100% Correct Expo, NECO 2019 100% Real Expo / Runz, Best NECO 2019 Expo Site. 2019 NECO EXPO | 2019 NECO RUNZ | 2019 NECO EXPO | 2019 NECO EXPO/RUNS | 2019 NECO QUESTION AND ANSWERS, 2019 NECO Expo, 2019 NECO Runs, 2019 NECO Answers, 2019 NECO Questions NECO EXPO 2019: 2019 NECO EXAM EXPO RUNS | 2019 NECO EXPO ANSWERS/SITE 2019 WAEC EXPO, 2019 WAEC ANSWERS, WAEC 2019 EXPO, 2019 WAEC ANSWERS, FREE WAEC EXPO, FREE EXPO ON WAEC, WAEC 2019 EXPO FOR FREE, FREE 2019 WAEC ANSWERS, 2019 WAEC QUESTIONS, 2019 WAEC ANSWERS, 2019 WAEC EXPO ANSWERS,2019 WAEC ANSWERS, 2019 WAEC RUNS, FREE 2019 WAEC ANSWERS, 2019 WAEC RUNS, 2019 WAEC ANSWER, 2019 WAEC EXPO, 2019 WAEC QUESTIONS, 2019 WAEC QUESTIONS, WAEC EXPO ANSWERS,2019 WAEC EXPO, WAEC 2019 ANSWERS, WAEC 2019 ANSWER, WAEC 2019 ANSWERS, WAEC 2019 RUNZ, WAEC 2019 ANSWERS, WAEC 2019 EXPO, WAEC ANSWERS 2019. 2019 WAEC QUESTION AND ANSWERS | 2019 WAEC ANSWER | 2019 WAEC QUESTION AND ANSWERS | 2019/2020 WAEC EXPO WEBSITE | 2019/2020 WAEC ANSWERS | WAEC ANSWER 2019 | WAEC QUESTIONS 2019 | 2019 WAEC ANSWER FOR ALL SUBJECTS | CHOCKS CONFIRMED ANSWERS FOR BIOLOGY MATH ENGLISH CHEMISTRY ACCOUNTING COMMERCE GEOGRAPHY FISHERY PHYSICS ECONOMICS HISTORY COMPUTER CIVIC EDUCATION PHYSICAL EDUCATION 2019 WAEC SSCE EXPO | 2019 Waec Exam Runz, Waec 2019 Runs, Waec 2019 Expo Site, Exam Runs, Waec 2019/2020 Runs 100% Correct Expo, Waec 2019 100% Real Expo / Runz, Best Waec 2019 Expo Site 2019 WAEC EXPO | 2019 WAEC RUNZ | 2019/2020 WAEC QUESTION AND ANSWER | 2019 WAEC RUNS | 2019 WAEC SSCE EXPO ALL SUBJECTS QUESTION AND ANSWERS. 2019 WAEC EXPO | 2019 WAEC RUNZ |2019 WAEC TIMETABLE |2019 WAEC SPECIMENS | 2019/2020 WAEC QUESTION AND ANSWER | 2019 WAEC RUNS | 2019 WAEC SSCE EXPO ALL SUBJECTS QUESTION AND ANSWERS 2019 WAEC EXPO | 2019 WAEC RUNZ | 2019/2020 WAEC QUESTION AND ANSWER | 2019 WAEC RUNS | 2019 WAEC SSCE EXPO ALL SUBJECTS QUESTIONS 2019 WAEC EXPO | 2019 WAEC RUNZ | 2019/2020 WAEC QUESTION AND ANSWER | 2019 WAEC RUNS | 2019 WAEC SSCE EXPO ALL SUBJECTS QUESTION AND ANSWERS AND ANSWERS 2019/2020 Waec Questions And Answers | 2019 May June Verified/Real Expo/Runz. WAEC Assistance For Expo 2019/2020 Runz WAEC RUNZ , Real WAEC 2019 Expo site, Exam Runs, Free WAEC Answers, Free , Free WAEC Runs / Runz, Waec , Waec ,Trusted WAEC , WAEC 2019 Correct Expo, WAEC ssce Runs, WAEC Answers, WAEC Exam Gce Assistance, WAEC , Site, WAEC Real Expo / Runz Download WAEC SSCE QUESTIONS Below 2019 WAEC RUNS RUNZ EXPO CHOCKS FOR 2019/19 SESSION Waec 2019/2020 Real Questions and Answers Expo Runz/Runs 2019 Waec Expo,2019/2020 Waec may/June ssce Real/Sure confirmed Questions/Answers/Expo/Runz 2019/2020 Waec Ssce Real/Confirmed Questions And Answers, Expo/Runz 2019/2020 Waec May/June Real Expo, Questions and Answers Waec 2019/2020 Questions/Answers /Expo 2019/2020 Waec Questions And Answers, Expo . 2019/2020 Waec Real/Confirmed Expo/Runz, Questions/Answers.Verified/sure 2019/2020 Waec Ssce may/June Question And Answers Expo/Runz. 2019/2020 Waec/Wassce Real Runz, Questions and Answers.2019/2020 Waec Expo, Questions and Answers. Waec 2019/2020 Questions and Answers Runz/Expo.2019/2020 Waec Ssce Expo. Verified 2019/2020 Waec subjects Questions/Answers, Expo/Runz. Waec 2019 Expo site, Waec Exam Runs, 2019 Waec Ssce Questions, 2019 WAEC Answers, Verified , Trusted WAEC , WAEC 2019 Correct Expo, WAEC RUNZ,waec answers 2019 waec answers for english waec answers for mathematics 2019 waec answers literature in english waec answers for mathematics 2019 waec answers 2019 waec answers for biology 2019 waec 2019 Answers,2019 waec Expo,waec 2019 Questions and Answers, Expo and Runs is finally out,Expo for waec 2019 is Finally Out Today! REAL WAEC 2019 Questions and answers/EXPO Runz 2019 Waec 2019 Expo waec Runs and Free Answers for 2019 Examination,Is waec 2019 Free Expo Out,Is waec 2019 Questions and Answers Released. Waec 2019/2020 Exam Expo – Runs – Chocks TAGS; Waec Exam Runz, Waec 2019 Runs, Waec 2019 Expo Site, Exam Runs, Waec 2019/2020 Runs 100% Correct Expo, Waec 2019 100% Real Expo / Runz, Best Waec 2019 Expo Site. 2019 WAEC EXPO | 2019 WAEC RUNZ | 2019 WAEC EXPO | 2019 WAEC EXPO/RUNS | 2019 WAEC QUESTION AND ANSWERS, 2019 WAEC Expo, 2019 WAEC Runs, 2019 WAEC Answers, 2019 WAEC Questions WAEC EXPO 2019: 2019 WAEC EXAM EXPO RUNS | 2019 WAEC EXPO ANSWERS/SITE
error: Content is protected !!