FURTHER/MATHS-OBJ
01-10: CCDDCDCAAE
11-20: CCCDDAAACD
21-30: EABBCCEBDC
31-40: CDECEECBEB
41-50: ECADBDBCDA
Solved by Examkey.net
Completed!!!
01-10: CCDDCDCAAE
11-20: CCCDDAAACD
21-30: EABBCCEBDC
31-40: CDECEECBEB
41-50: ECADBDBCDA
Solved by Examkey.net
Completed!!!
π2
WAEC GCE ENGLISH LANGUAGE OBJ
ENGLISH OBJ:
01-10: BACACDACCD
11-20: BADCDDCDBC
21-30: AADCBCBDAB
31-40: CBCBAAABBC
41-50: BCBABDBABD
51-60: ADABAABDDC
61-70: DDCDBABDAD
71-80: AACBACCCAD
COMPLETED
ENGLISH OBJ:
01-10: BACACDACCD
11-20: BADCDDCDBC
21-30: AADCBCBDAB
31-40: CBCBAAABBC
41-50: BCBABDBABD
51-60: ADABAABDDC
61-70: DDCDBABDAD
71-80: AACBACCCAD
COMPLETED
β€2π1
HISTORY-ESSAY-ANSWERS
(1)
(i) Ethnolinguistic diversity: Non-centralized communities in Nigeria are characterized by a diverse range of ethnic groups and languages. Nigeria is home to over 250 different ethnic groups, each with its own distinct language and cultural practices.
(ii) Lack of hierarchical governance structure: Non-centralized communities often lack a centralized authority or governing body. Instead, decision-making is typically done through consensus or by village or clan elders.
(iii) Communal ownership of land: In non-centralized communities, land is often communally owned and shared among community members. This communal ownership promotes cooperation and a sense of belonging within the community.
(iv) Close-knit social structures: Social relationships in non-centralized communities tend to be tightly knit. Interactions are often based on kinship, with extended families playing a central role in community cohesion.
(v) Oral tradition and cultural heritage: Non-centralized communities often rely on oral tradition to pass down historical knowledge, stories, and cultural practices. This includes oral storytelling, proverbs, music, and dance as methods of preserving their cultural heritage.
β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’
(5)
(i)End of Inter-tribal Conflicts: The peace treaty brought an end to the inter-tribal conflicts that had plagued Yoruba land. It helped to establish a more stable and peaceful environment for the Yoruba people.
(ii)Preservation of Cultural Heritage: The peace treaty allowed the Yoruba people to focus on preserving and promoting their rich cultural heritage. With the cessation of hostilities, there was more opportunity for the development of arts, music, and traditional practices.
(iii) Economic Growth: The peace treaty facilitated increased trade and economic growth in Yoruba land. With the restoration of peace, people could engage in commerce and agriculture without the fear of violence or disruption. This led to improved living standards and economic prosperity for many Yoruba communities.
(iv) Infrastructure Development: The peace treaty created a conducive environment for the development of infrastructure in Yoruba land. With the absence of conflict, resources could be allocated towards building roads, schools, hospitals, and other essential facilities that contributed to the overall development of the region.
(v)Social Reconciliation: The peace treaty played a crucial role in fostering social reconciliation among the Yoruba people. It provided an opportunity for healing and rebuilding relationships that had been strained by years of conflict. This helped to strengthen the sense of unity and cooperation within Yoruba communities.
β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’
(8)
(i) Political Instability: Nigeria's first republic, which lastedfrom 1960 to 1966, was plagued by frequent changes in government and instability. The ruling political parties were often divided along regional and ethnic lines, leading to power struggles and conflicts. In addition, there were allegations of corruption and mismanagement of public resources, which further undermined the legitimacy of the government.
(ii) Ethnic Tensions: Nigeria is a diverse country with over 250 ethnic groups, and during the first republic, ethnic tensions were significant. The country was divided into three regions, each dominated by different ethnic groups. This led to competition for resources and power, and in some cases, violence erupted between ethnic communities. The military, seeing themselves as a neutral force, believed they could restore order and protect the unity of the country.
(iii) Poor Governance: The civilian government during the first republic faced numerous challenges in governing effectively. There was a lack of accountability and transparency, resulting in widespread corruption and embezzlement of public funds.
(1)
(i) Ethnolinguistic diversity: Non-centralized communities in Nigeria are characterized by a diverse range of ethnic groups and languages. Nigeria is home to over 250 different ethnic groups, each with its own distinct language and cultural practices.
(ii) Lack of hierarchical governance structure: Non-centralized communities often lack a centralized authority or governing body. Instead, decision-making is typically done through consensus or by village or clan elders.
(iii) Communal ownership of land: In non-centralized communities, land is often communally owned and shared among community members. This communal ownership promotes cooperation and a sense of belonging within the community.
(iv) Close-knit social structures: Social relationships in non-centralized communities tend to be tightly knit. Interactions are often based on kinship, with extended families playing a central role in community cohesion.
(v) Oral tradition and cultural heritage: Non-centralized communities often rely on oral tradition to pass down historical knowledge, stories, and cultural practices. This includes oral storytelling, proverbs, music, and dance as methods of preserving their cultural heritage.
β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’
(5)
(i)End of Inter-tribal Conflicts: The peace treaty brought an end to the inter-tribal conflicts that had plagued Yoruba land. It helped to establish a more stable and peaceful environment for the Yoruba people.
(ii)Preservation of Cultural Heritage: The peace treaty allowed the Yoruba people to focus on preserving and promoting their rich cultural heritage. With the cessation of hostilities, there was more opportunity for the development of arts, music, and traditional practices.
(iii) Economic Growth: The peace treaty facilitated increased trade and economic growth in Yoruba land. With the restoration of peace, people could engage in commerce and agriculture without the fear of violence or disruption. This led to improved living standards and economic prosperity for many Yoruba communities.
(iv) Infrastructure Development: The peace treaty created a conducive environment for the development of infrastructure in Yoruba land. With the absence of conflict, resources could be allocated towards building roads, schools, hospitals, and other essential facilities that contributed to the overall development of the region.
(v)Social Reconciliation: The peace treaty played a crucial role in fostering social reconciliation among the Yoruba people. It provided an opportunity for healing and rebuilding relationships that had been strained by years of conflict. This helped to strengthen the sense of unity and cooperation within Yoruba communities.
β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’
(8)
(i) Political Instability: Nigeria's first republic, which lastedfrom 1960 to 1966, was plagued by frequent changes in government and instability. The ruling political parties were often divided along regional and ethnic lines, leading to power struggles and conflicts. In addition, there were allegations of corruption and mismanagement of public resources, which further undermined the legitimacy of the government.
(ii) Ethnic Tensions: Nigeria is a diverse country with over 250 ethnic groups, and during the first republic, ethnic tensions were significant. The country was divided into three regions, each dominated by different ethnic groups. This led to competition for resources and power, and in some cases, violence erupted between ethnic communities. The military, seeing themselves as a neutral force, believed they could restore order and protect the unity of the country.
(iii) Poor Governance: The civilian government during the first republic faced numerous challenges in governing effectively. There was a lack of accountability and transparency, resulting in widespread corruption and embezzlement of public funds.
This led to a decline in public trust and contributed to the military's argument that a strong, disciplined government was needed to restore order and promote development.
(vi) Economic Crisis: Nigeria experienced economic difficulties during the first republic, with declining revenues from oil exports and a struggling agricultural sector. The government's inability to address these economic challenges further eroded public confidence. The military argued that they were better equipped to manage the economy and implement necessary reforms.
(v) Military's Perception of Duty: The Nigerian military saw itself as a guardian of the nation and believed it had a duty to intervene and restore order when the civilian government failed to do so. There was a growing frustration within the military ranks about the state of the country and the perceived incompetence of the civilian leadership.
β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’
(8)
(i) Political Instability: Nigeria's first republic, which lastedfrom 1960 to 1966, was plagued by frequent changes in government and instability. The ruling political parties were often divided along regional and ethnic lines, leading to power struggles and conflicts. In addition, there were allegations of corruption and mismanagement of public resources, which further undermined the legitimacy of the government.
(ii) Ethnic Tensions: Nigeria is a diverse country with over 250 ethnic groups, and during the first republic, ethnic tensions were significant. The country was divided into three regions, each dominated by different ethnic groups. This led to competition for resources and power, and in some cases, violence erupted between ethnic communities. The military, seeing themselves as a neutral force, believed they could restore order and protect the unity of the country.
(iii) Poor Governance: The civilian government during the first republic faced numerous challenges in governing effectively. There was a lack of accountability and transparency, resulting in widespread corruption and embezzlement of public funds. This led to a decline in public trust and contributed to the military's argument that a strong, disciplined government was needed to restore order and promote development.
(vi) Economic Crisis: Nigeria experienced economic difficulties during the first republic, with declining revenues from oil exports and a struggling agricultural sector. The government's inability to address these economic challenges further eroded public confidence. The military argued that they were better equipped to manage the economy and implement necessary reforms.
(v) Military's Perception of Duty: The Nigerian military saw itself as a guardian of the nation and believed it had a duty to intervene and restore order when the civilian government failed to do so. There was a growing frustration within the military ranks about the state of the country and the perceived incompetence of the civilian leadership.
β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’
(9)
(i) Loss of Lives: The civil war resulted in a significant loss of lives, with estimates ranging from one to three million people. This tragic loss of life had a profound impact on families and communities across Nigeria.
(ii) Displacement and Humanitarian Crisis: The war also led to the displacement of many people. Families were forced to leave their homes and seek refuge in other parts of the country or neighboring countries. This created a humanitarian crisis, with many people lacking access to basic necessities like food, shelter, and healthcare.
(iii) Economic Impact: The civil war had a detrimental effect on Nigeria's economy. Agricultural production was disrupted, leading to food shortages and famine in some areas. The conflict also damaged infrastructure, including schools, hospitals, and roads, which hindered economic development and recovery.
(iv) Ethnic and Religious Tensions: The civil war deepened existing ethnic and religious tensions within Nigeria.
(vi) Economic Crisis: Nigeria experienced economic difficulties during the first republic, with declining revenues from oil exports and a struggling agricultural sector. The government's inability to address these economic challenges further eroded public confidence. The military argued that they were better equipped to manage the economy and implement necessary reforms.
(v) Military's Perception of Duty: The Nigerian military saw itself as a guardian of the nation and believed it had a duty to intervene and restore order when the civilian government failed to do so. There was a growing frustration within the military ranks about the state of the country and the perceived incompetence of the civilian leadership.
β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’
(8)
(i) Political Instability: Nigeria's first republic, which lastedfrom 1960 to 1966, was plagued by frequent changes in government and instability. The ruling political parties were often divided along regional and ethnic lines, leading to power struggles and conflicts. In addition, there were allegations of corruption and mismanagement of public resources, which further undermined the legitimacy of the government.
(ii) Ethnic Tensions: Nigeria is a diverse country with over 250 ethnic groups, and during the first republic, ethnic tensions were significant. The country was divided into three regions, each dominated by different ethnic groups. This led to competition for resources and power, and in some cases, violence erupted between ethnic communities. The military, seeing themselves as a neutral force, believed they could restore order and protect the unity of the country.
(iii) Poor Governance: The civilian government during the first republic faced numerous challenges in governing effectively. There was a lack of accountability and transparency, resulting in widespread corruption and embezzlement of public funds. This led to a decline in public trust and contributed to the military's argument that a strong, disciplined government was needed to restore order and promote development.
(vi) Economic Crisis: Nigeria experienced economic difficulties during the first republic, with declining revenues from oil exports and a struggling agricultural sector. The government's inability to address these economic challenges further eroded public confidence. The military argued that they were better equipped to manage the economy and implement necessary reforms.
(v) Military's Perception of Duty: The Nigerian military saw itself as a guardian of the nation and believed it had a duty to intervene and restore order when the civilian government failed to do so. There was a growing frustration within the military ranks about the state of the country and the perceived incompetence of the civilian leadership.
β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’
(9)
(i) Loss of Lives: The civil war resulted in a significant loss of lives, with estimates ranging from one to three million people. This tragic loss of life had a profound impact on families and communities across Nigeria.
(ii) Displacement and Humanitarian Crisis: The war also led to the displacement of many people. Families were forced to leave their homes and seek refuge in other parts of the country or neighboring countries. This created a humanitarian crisis, with many people lacking access to basic necessities like food, shelter, and healthcare.
(iii) Economic Impact: The civil war had a detrimental effect on Nigeria's economy. Agricultural production was disrupted, leading to food shortages and famine in some areas. The conflict also damaged infrastructure, including schools, hospitals, and roads, which hindered economic development and recovery.
(iv) Ethnic and Religious Tensions: The civil war deepened existing ethnic and religious tensions within Nigeria.
It was fought between the Nigerian government, mainly composed of the Hausa-Fulani ethnic group, and the secessionist state of Biafra, largely made up of the Igbo ethnic group. These divisions and resentments still have an impact on the country's social fabric today.
(v) Political Restructuring: The civil war prompted a reevaluation of Nigeria's governance structure. It led to the adoption of a federal system, which aimed to address some of the underlying causes of the conflict. This restructuring emphasized the importance of power-sharing and inclusivity among Nigeria's diverse ethnic and religious groups
(v) Political Restructuring: The civil war prompted a reevaluation of Nigeria's governance structure. It led to the adoption of a federal system, which aimed to address some of the underlying causes of the conflict. This restructuring emphasized the importance of power-sharing and inclusivity among Nigeria's diverse ethnic and religious groups
HISTORY-OBJ
01-10: CBACCCCBAA
11-20: CBADEABECB
21-30: BCBCDBDDCE
31-40: DBABDEEBCD
41-50: BACACAEACA
51-60: EEBBBBBACC
Solved by Examkey.net
COMPLETED!!!
01-10: CBACCCCBAA
11-20: CBADEABECB
21-30: BCBCDBDDCE
31-40: DBABDEEBCD
41-50: BACACAEACA
51-60: EEBBBBBACC
Solved by Examkey.net
COMPLETED!!!
π3
ORAL ENGLISH
01-10: DACBACBBAC
11-20: ABDCDBCACB
21-30: CACABADACA
31-40: CBBCCBBBCC
41-50: ABCADABDDB
51-60: BDDDBCADDA
Solved By Examkey.Net
COMPLETED
01-10: DACBACBBAC
11-20: ABDCDBCACB
21-30: CACABADACA
31-40: CBBCCBBBCC
41-50: ABCADABDDB
51-60: BDDDBCADDA
Solved By Examkey.Net
COMPLETED
β‘5
UP NEXT DECEMBER 11TH
NECO GCE BIOLOGY ESSAY AND OBJECTIVE #500
QUESTIONS AND ANSWERS AVAILABLE NW IMMEDIATELY PAYMENT DONE TO STUDY IT TODAY.
WHATSAPP 09056863938 ONLY.
NECO GCE BIOLOGY ESSAY AND OBJECTIVE #500
QUESTIONS AND ANSWERS AVAILABLE NW IMMEDIATELY PAYMENT DONE TO STUDY IT TODAY.
WHATSAPP 09056863938 ONLY.
π3π’1
BIOLOGY-OBJ
01-10 CBDBDACCBD
11-20 AAEBCEDCCB
21-30 BBCACBEAAE
31-40 DDCDBDCAAB
41-50 DDEEDADABE
51-60 EAAEACABAB
Solved by Examkey.net
Completed!!!
β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’
BIOLOGY-ESSAY-ANSWERS
(1ai)
Organic evolution refers to the gradual and cumulative change in the heritable characteristics of biological populations over successive generations.
(1aii)
- Wind
- Animal
(1aiii)
- Photosynthesis occurs in plants and some bacteria, while respiration occurs in all living organisms.
- Photosynthesis produces oxygen and glucose, while respiration uses oxygen to break down glucose and produce energy.
(1aiv)
- It promotes cell elongation
- It controls tropic responses like phototropism and gravitropism.
(1bi)
Metamorphosis in houseflies involves four stages: egg, larva (maggot), pupa, and adult. The adult female housefly lays eggs on suitable organic material. These eggs hatch into larvae or maggots, which feed on the organic matter. The larva then transforms into a pupa, where it undergoes a complex series of changes. Finally, an adult housefly emerges from the pupa, completing the metamorphic cycle.
(1bii)
- Cellular level
- Tissue level
- Organ level
- Organ system level
- Organismal level
β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’
(2ai)
(i) Imbibition: The seed absorbs water from the soil, causing it to swell and activate biochemical processes within the seed.
(ii) Activation of Enzymes: The imbibed water activates enzymes within the seed, which initiate the metabolic processes necessary for germination.
(iii) Mobilization of Stored Energy: The stored energy reserves, such as starch and proteins, within the seed are broken down into simple sugars to provide energy for the growing embryo.
(iv) Growth of the Embryo: The embryo grows, and the radicle (primary root) emerges from the seed, followed by the emergence of the shoot, which develops into the stem and leaves.
(v) Photosynthesis: As the shoot emerges and develops leaves, the plant is able to carry out photosynthesis, which provides it with the energy to continue growing.
(2aii)
(i) Availability of Resources: The availability of food, water, shelter, and suitable habitat directly influences the population size.
(ii) Predation: The presence of predators can limit the population size of organisms as they prey on them, causing a decrease in the population.
(iii) Competition: Competition for limited resources, such as food and territory, can limit the population size of organisms as individuals have to compete for these resources.
(iv) Disease and Parasites: The presence of diseases and parasites can negatively impact the population size by causing morbidity and mortality.
(2bi)
-Bush Burning-
(i) Loss of vegetation: Bush burning destroys plants, resulting in a loss of habitat and decreased biodiversity.
(ii) Soil degradation: Intense heat from bush burning can lead to soil degradation, reducing its fertility and ability to support plant growth.
-Fertilizer Application-
(i) Eutrophication: Overuse or improper application of fertilizers can lead to eutrophication, where excessive nutrients enter water bodies, leading to algal blooms and oxygen depletion.
(ii) Soil pollution: Certain fertilizers can contain harmful chemicals that can pollute the soil, affecting soil quality and the health of organisms living in it.
-Use of Pesticides-
(i) Harm to non-target organisms: Pesticides can harm not only the targeted pests but also beneficial organisms such as pollinators, natural predators, and soil organisms, affecting biodiversity.
(ii) Bioaccumulation and biomagnification: Some pesticides can accumulate in the body tissues of organisms and can become more concentrated as they move up the food chain, posing a risk to higher-level consumers.
(2bii)
(i) Pulmonary Respiration
(ii) Cutaneous Respiration
(iii) Buccopharyngeal Respiration
β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’
(4ai)
- camera traps
- transect lines
- mark-recapture techniques.
01-10 CBDBDACCBD
11-20 AAEBCEDCCB
21-30 BBCACBEAAE
31-40 DDCDBDCAAB
41-50 DDEEDADABE
51-60 EAAEACABAB
Solved by Examkey.net
Completed!!!
β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’
BIOLOGY-ESSAY-ANSWERS
(1ai)
Organic evolution refers to the gradual and cumulative change in the heritable characteristics of biological populations over successive generations.
(1aii)
- Wind
- Animal
(1aiii)
- Photosynthesis occurs in plants and some bacteria, while respiration occurs in all living organisms.
- Photosynthesis produces oxygen and glucose, while respiration uses oxygen to break down glucose and produce energy.
(1aiv)
- It promotes cell elongation
- It controls tropic responses like phototropism and gravitropism.
(1bi)
Metamorphosis in houseflies involves four stages: egg, larva (maggot), pupa, and adult. The adult female housefly lays eggs on suitable organic material. These eggs hatch into larvae or maggots, which feed on the organic matter. The larva then transforms into a pupa, where it undergoes a complex series of changes. Finally, an adult housefly emerges from the pupa, completing the metamorphic cycle.
(1bii)
- Cellular level
- Tissue level
- Organ level
- Organ system level
- Organismal level
β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’
(2ai)
(i) Imbibition: The seed absorbs water from the soil, causing it to swell and activate biochemical processes within the seed.
(ii) Activation of Enzymes: The imbibed water activates enzymes within the seed, which initiate the metabolic processes necessary for germination.
(iii) Mobilization of Stored Energy: The stored energy reserves, such as starch and proteins, within the seed are broken down into simple sugars to provide energy for the growing embryo.
(iv) Growth of the Embryo: The embryo grows, and the radicle (primary root) emerges from the seed, followed by the emergence of the shoot, which develops into the stem and leaves.
(v) Photosynthesis: As the shoot emerges and develops leaves, the plant is able to carry out photosynthesis, which provides it with the energy to continue growing.
(2aii)
(i) Availability of Resources: The availability of food, water, shelter, and suitable habitat directly influences the population size.
(ii) Predation: The presence of predators can limit the population size of organisms as they prey on them, causing a decrease in the population.
(iii) Competition: Competition for limited resources, such as food and territory, can limit the population size of organisms as individuals have to compete for these resources.
(iv) Disease and Parasites: The presence of diseases and parasites can negatively impact the population size by causing morbidity and mortality.
(2bi)
-Bush Burning-
(i) Loss of vegetation: Bush burning destroys plants, resulting in a loss of habitat and decreased biodiversity.
(ii) Soil degradation: Intense heat from bush burning can lead to soil degradation, reducing its fertility and ability to support plant growth.
-Fertilizer Application-
(i) Eutrophication: Overuse or improper application of fertilizers can lead to eutrophication, where excessive nutrients enter water bodies, leading to algal blooms and oxygen depletion.
(ii) Soil pollution: Certain fertilizers can contain harmful chemicals that can pollute the soil, affecting soil quality and the health of organisms living in it.
-Use of Pesticides-
(i) Harm to non-target organisms: Pesticides can harm not only the targeted pests but also beneficial organisms such as pollinators, natural predators, and soil organisms, affecting biodiversity.
(ii) Bioaccumulation and biomagnification: Some pesticides can accumulate in the body tissues of organisms and can become more concentrated as they move up the food chain, posing a risk to higher-level consumers.
(2bii)
(i) Pulmonary Respiration
(ii) Cutaneous Respiration
(iii) Buccopharyngeal Respiration
β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’β’
(4ai)
- camera traps
- transect lines
- mark-recapture techniques.
β€3π1
(ii) The process of ionic transmission of a nerve impulse in a neuron starts with the generation of an action potential. When a nerve impulse reaches the end of one neuron, it triggers the release of neurotransmitters, which are chemical messengers. These neurotransmitters cross the synapse, a small gap between neurons, and bind to receptors on the receiving neuron. This binding causes a change in the electrical charge of the receiving neuron, allowing the nerve impulse to continue along the neural pathway.
(4bi)
- myopia (nearsightedness)
- hyperopia (farsightedness).
(4bii)
- petals
- sepals
- stamen
- pistil.
(4biii)
Grass---> Grasshopper---> Lizard-->Snake
(4bi)
- myopia (nearsightedness)
- hyperopia (farsightedness).
(4bii)
- petals
- sepals
- stamen
- pistil.
(4biii)
Grass---> Grasshopper---> Lizard-->Snake
π₯°2π1π’1
UP NEXT DECEMBER 12TH.
WAEC CHEMISTRY ESSAY AND OBJECTIVE #500
WAEC CHEMISTRY PRACTICAL #500
QUESTIONS AND ANSWERS AVAILABLE BY 9PM TONIGHT.
WHATSAPP 09056863938 ONLY
WAEC CHEMISTRY ESSAY AND OBJECTIVE #500
WAEC CHEMISTRY PRACTICAL #500
QUESTIONS AND ANSWERS AVAILABLE BY 9PM TONIGHT.
WHATSAPP 09056863938 ONLY
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NO FREE QUESTIONS AND ANSWERS.
NO FREE QUESTIONS AND ANSWERS.
π’6π₯±3