2019 WAEC RUNZ BIOLOGY THEORY & OBJ QUESTIONS AND ANSWERS MAY/JUNE - Providing Academic & Career Guide TO Students.

Hot: Click Here For Latest School News, University, College, Scholarships And ...Education Updates!


Free 2020 JAMB Runz
NECO 2019
Free 2020 JAMB Runz | 2020/2021 JAMB Expo Questions And Answers Available
Free 2019/2020 Waec Gce Runz | 2019 Waec Gce Expo Questions And Answers Available/Runs
Click Here

Thursday, May 23, 2019

2019 WAEC RUNZ BIOLOGY THEORY & OBJ QUESTIONS AND ANSWERS MAY/JUNE

Place Advert Here..
Biology OBJ:
1-10: CBAABCDACC
11-20: CDCAACBDBB
21-30: DCCBDBCDDB
31-40: DBADDAACDD
41-50: DCAAABDCDB
GURUSVOICE CARES
TELL YOUR FRIENDS ABOUT US

MESSAGE US ON WHATSAPP WITH 07034225859 FOR WAEC RUNZ UPDATE
=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=:=
(1ai)
TABULATE:
ORAGNISM |RESPIRATORY SURFACE
Tadpole |Skin
Cockroach|Trachea
Domestic fowl|Lungs
Talinum |Stomata
Earthworm|Skin
Amoeba |Cell membrane
(1b)
(i) Large surface area
(ii) Thin respiratory surface
(iii) Moist surface
(iv) Efficient transport system.
(v) Permeability
(1c)
Draw
=====================================
(2ai)
Meat type A and meat type D
(2aii)
They contain the lowest fat content.
(2bi)
Meat type C and meat type D.
(2bii)
-Proteins give energy.
-Strengthens muscles.
(2ci)
A, C and D
(2cii)
A person deficient in protein suffers kwashiokor. Hence a diet with high content in protein is needed.
(2di)
Meat type D
(2dii)
Meat type F
(2e)
Carbohydrate.
(2f)
(i) for energy and heat to keep the body warm.
(ii) They are used as insulators to nerves and cell membranes.
(iii) Formation of cell membranes.
(2g)
Drop the meat on a white paper observe the meat against a source of light, the far part becomes more translucent
=====================================
(3a)
TABULATE
Under PARASITISM:
-Mistletoe and cacao plant.
-Tapeworm in the gut of humans.
-Lichen
Under MUTUALISM:
-Cattle and white egret.
-Flowers and honeybee
Under COMMENSALISM:
-Remora and shark.
(3bi)
(i) They have strong suckers and hooks.
(ii) They have large surface area for absorptions of nutrients.
(iii) They have thin and flattened shape.
(3bii)
[Pick any Two]
(i) They have blood loss.
(ii) They cause diarrhoea.
(iii) They cause severe loss of weight.
(3ci)
Saprophytes are mainly non-green plants which do not have chloroplasts and therefore cannot manufacture their own food.
(3cii)
[Pick any Four]
(i) Rhizopus
(ii) Mushroom
(iii) Mucor.
(iv) Agaricus
(v) Yeast
=====================================

===================================
(6ai)
The enormous energy of lightning breaks nitrogen molecules and enables their atoms to combine with oxygen in the air forming nitrogen oxides. These dissolve in rain, forming nitrates, that are carried to the earth.
(6aii)
This organism oxidizes ammonia into nitrite as a metabolic process. Nitrosomonas are useful in bioremediation. They are important in the nitrogen cycle by increasing the availability of nitrogen to plants while limiting carbon dioxide fixation.
(6aiii)
Azotobacter helps to synthesizes some biologically active substances, including some phytohormones such as auxins, thereby stimulating plant growth.
(6b)
(i) Malphigan tubule
(ii) Nephridium
(6c)
(i) Hepatitis: This is a liver disease defined as inflammation of the liver. It may occur as a result of viral infection or toxic substances like poisons or drugs. This disease makes the liver unable to perform it’s functions properly.
(ii) Kidney stones: This is caused by diseased growth in the kidneys within the tubules. This growth narrows rye tubules preventing free flow of urine. It most causes complete blockage of. Urine results.
(6di)
(i) It makes the system insensitive.
(ii) It Mars the protective role of the system.
(iii) Temperature will be poorly regulated.
(6dii)
(i)Cornified layer.
(ii)Granular layer.
(iii)Malphigean layer.
(6ei)
Metamorphosis is the series of gradual changes of forms and shape of insect from the fertilized egg to adult.
(6eii)
Grasshopper – Incomplete
Cockroach – Incomplete
Butterfly – complete
Mosquito – complete
Housefly – complete

No comments:

Post a Comment

After dropping your comment, keep calm, it may take minutes before it appears after moderation.
Your comment(s) are appreciated.

You want to get notified when we reply your comment? Kindly tick the Notify Me box..
09030866320


offeroffer
Do You Love The Current Design Of This Blog? We Can Set Up Same Design For You At An Affordable Price.

Click Here Now To Get Started!


HOME | ABOUT US | CONTACT US | DISCLAIMER NOTICE | PRIVACY POLICY
SITEMAP

Copyright © 2019. Powered by GurusVoice.


JAMB Economics Expo 2020
JAMB Questions and Answers 2020
JAMB CBT Government Expo 2020
JAMB CBT CRS Expo 2020
JAMB CBT Physics Runz 2020
2020/2021 JAMB CBT Agric Runz&
JAMB CBT Biology Expo 2020
JAMB CBT Chemistry Expo 2020
JAMB CBT Geography Runz 2020
JAMB CBT Commerce Expo 2020
JAMB CBT Use OF English Runz 2020/2021
JAMB CBT Civic Education Expo 2020
JAMB UTME 2020 Registration Process
JAMB All Subjects Free Expo, Runs, Questions and Answers 2020.