This is actually the 2020 waec gce Biology answerAnswers as questions sent to our subscribers on WHATSAPP, if you are looking for 2020 WAEC/NECO Answers midnight before the exam, try contacting us.
(1a) In Tabular Form
- Hormonal -
(i)Transmission is chemical
(ii)Slow transmission
(iii)Response is wide spread
(iv) Target organs receive response
(v)Long lasting response
- Nervous-
(i)Transmission is electrical and chemical
(ii)Rapid transmission
(iii)Response localized
(iv) Effector organs receive response
(v)Short-lived response
(1bi)
(i) It increases oestradiol production.
(ii) Essential in pubertal development.
(1biii)
{pick any 3}
(i) it stimulates the liver to convert glycogen to Sugar thereby increasing the blood sugar level.
(ii) it increases the rate of Heartbeat and breathing.
(iii) it increases the muscle tone for higher work rate.
(iv) it prepares the body for emergency.
(v) it is associated with fear or anxiety and brings about shivering when the animal feels cold.
(3a)
(i) The roots of aquatic plants are shallow and spread out over a large area and serve as support
(ii) Aquatic plants have mechanism for maintaining a high osmotic concentration in their cell which is close to that of the water in their habitat
(iii) The roots of mangrove plants have many devices for taking in atmospheric oxygen
(iv) The seeds of mangrove plant germinates while they are still on the parent tree
(3bi)
Secondary succession is one of the two types ecological succession of a plants life. As opposed to the first, primary succession, secondary succession is a process started by an event that reduces an.
(3bii)
(i)temperatures
(ii)water
(iii)nutrient availability
(3biii)
Once a pond is created, seeds are flown in by birds or deposited by mammals who visit the pond. These first seed plants are called pond pioneers.As established plants grow and die they sink to the bottom of the pond and helping to fill in the shallow water. In other words Eventually the pond’s emergent plants may cover the entire pond turning the pond into a soggy marsh. In time the soft, wet ground of the marsh will be overtaken by plants and dry out. When that happens it means the pond has succeeded into a field or meadow. As plant life & soil conditions change, the wildlife attracted to the area will change.
(3c)
(i) Sickle cell anemia
(ii) Color-blindness
(iii) Diabetes
(iv) cystic fibrosis
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Two examinations are held annually. On 15 July 2013, some plans were made by the federal government of Nigeria to remove the National Examination Council (NECO) From the Nigeria Education System due to low and average passing percentage from candidates across the state in Nigeria.
To register for NECO examination, candidates are to obtain a draft and pay a non-refundable fee of Twelve Thousand Naira Only (N12,000) paid via bank draft or to school management if internal registration. The payment can be done in any NECO office, banks and Nipost offices nationwide.
To register for NECO examination, candidates are to obtain a draft and pay a non-refundable fee of Twelve Thousand Naira Only (N12,000) paid via bank draft or to school management if internal registration. The payment can be done in any NECO office, banks and Nipost offices nationwide.
NECO registration form 2020 price is Eleven Thousand , Three Hundred And Fifty Naira Only (N11,350) Nine Thousand, Eight Hundred And Fifty Naira Only (N9,850) following the reduction of JAMB UTME form price and NECO form price in 2021.
... is externally organized and graded by the West Africa Examinations Council (WAEC), which clas- sifies candidates who obtain BECE Aggregate 6 to 12 as "distinction" or "good" students, Aggregate 13 to 24 achiev- ers as "average," and Aggregate 25 and above achievers as "weak" students (Asihene, 2009;Dorleku, 2013; ...
... is externally organized and graded by the West Africa Examinations Council (WAEC), which clas- sifies candidates who obtain BECE Aggregate 6 to 12 as "distinction" or "good" students, Aggregate 13 to 24 achiev- ers as "average," and Aggregate 25 and above achievers as "weak" students (Asihene, 2009;Dorleku, 2013; ...