2019 WAEC BIOLOGY ESSAY & OBJ QUESTIONS AND ANSWERS NOW AVAILABLE
subscribe for the expo now if you don’t want late answers
Always check back this page. Don’t just come in and leave, keep refreshing<i.< b=””>
ORAGNISM |RESPIRATORY SURFACE
Amoeba |Cell membrane
(i) Large surface area
(ii) Thin respiratory surface
(iii) Moist surface
(iv) Efficient transport system.
Meat type A and meat type D
They contain the lowest fat content.
Meat type C and meat type D.
-Proteins give energy.
A, C and D
A person deficient in protein suffers kwashiokor. Hence a diet with high content in protein is needed.
Meat type D
Meat type F
(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.
Drop the meat on a white paper observe the meat against a source of light, the far part becomes more translucent
-Mistletoe and cacao plant.
-Tapeworm in the gut of humans.
-Cattle and white egret.
-Flowers and honeybee
-Remora and shark.
(i) They have strong suckers and hooks.
(ii) They have large surface area for absorptions of nutrients.
(iii) They have thin and flattened shape.
[Pick any Two]
(i) They have blood loss.
(ii) They cause diarrhoea.
(iii) They cause severe loss of weight.
Saprophytes are mainly non-green plants which do not have chloroplasts and therefore cannot manufacture their own food.
[Pick any Four]
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.
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.
Azotobacter helps to synthesizes some biologically active substances, including some phytohormones such as auxins, thereby stimulating plant growth.
(i) Malphigan tubule
(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.
(i) It makes the system insensitive.
(ii) It Mars the protective role of the system.
(iii) Temperature will be poorly regulated.
Metamorphosis is the series of gradual changes of forms and shape of insect from the fertilized egg to adult.
Grasshopper – Incomplete
Cockroach – Incomplete
Butterfly – complete
Mosquito – complete
Housefly – complete
READ BELOW MESSAGES TO LEARN HOW TO SUBSCRIBE .
ANSWERS WILL BE SENT TO OUR SUBSCRIBERS 3hrs BEFORE THE EXAM TIME
EXPOLORD.CO TEAM ASSURE YOU NOTHING LESS THAN B2 IN THIS SUBJECT..ALL YOU NEED TO DO IS TO SUBSCRIBE.
Read below carefully to know how to subscribe for it.
-=-=-=-=-=-=-=HOW TO SUBSCRIBE=-=-=-=-=-=-=
DIRECT TO MOBILE AS SMS: On this Direct mobile package we will send the Obj & Essay directly to your submitted phone number as a text message as early as we can…
>>Send 800 MTN CARD to 08160277754+ Subject name + phone number + i paid for direct sms.
DIRECT TO WHATSAPP: On this whatsapp answers package we will send the Obj & Essay directly to your whatsapp line you submitted
>>>Send 600 MTN CARD to 08160277754 + Subject name + whatsapp phone number + i paid for whatsapp answers.
PASSWORD PAYMENT: On this package of subscription, We will send a Password directly to your phone number, which will be Used to access the Answers Online. on our ANSWER PORTAL.
>>>>Send N400 MTN CARD to 08160277754 + Subject name + phone number with message i paid for online passwordOur Online/Link Subscribers Will Get There answers on WWW.EXPOLORD.CO/ANSWERS-PAGE
WARNING:-Please Don’t Even Come for Free Answers, because it Would’nt be Posted. Take me Serious This Time. Make Sure you Subscribe if you Don’t Want to be on Hot Seat