Waec Gce 2016 Biology Obj And Theory Answers – Nov/Dec Expo - Gidifans

You Are Here: Home » Exam - Waec Gce » Waec Gce 2016 Biology Obj And Theory Answers – Nov/Dec Expo - By xCoDeD On September 1, 2016 At 9:38 am



1 is homozygous starchy grain
2 are heterozygous starchy
1 is homozygous sugary grain

=435 starchy grains
-Sugary =1/4*500
=145 sugary grains


i)bacteria – Streptococcus
ii)Fungi- Basidiomycota
iii)Virus- Coxsackievirus

iv)proper sanitation
v)Proper hygiene

i)Increased human population
ii)Habitat Degredation
iii)Climate Change and Global Warming

i)Loss of the beauty of environment
ii)leading to climate warming
iii)it can lead to extinction of animals that feeds on those plants

Enzyme is a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.

i)all enzymes are proteins.
ii)Enzymes possess great catalytic power.
iii)Enzymes are highy specific.
iv)Enzymes show varying degree of specificities.
v)Absolute specificity where the enzymes
react specifically with only one substrate.

Pancreatic fluid or juice contains digestive enzymes that pass to the small intestine where they help to further break down the carbohydrates, proteins, and lipids (fats) in the chyme. Pancreatic juice is a liquid secreted by the pancreas, which contains a variety of enzymes including trypsinogen,chymotrypsinogen, elastase, carboxypeptidase, pancreatic lipase, nucleases, and amylase.Pancreatic juice is alkaline in nature due to the high concentration of bicarbonate ions. This is useful in neutralizing the acidic gastric acid, allowing for effective enzymic action.

most importantly,sun provides vitamin D which helps the body absorb the minerals calcium and phosphorus from the food that the boy eat, which is important for bone health. While milk is the main source of dietary calcium. Calcium is a major bone mineral, mandatory for bone health.

i)Photosynthesis conducted by plants is also an important part of the carbon cycle.
ii)It releases oxygen needed for breathing
iii)It serves as source of food manufacturing for human rights
iv)It provides sources for fuel through plants
v)it help to balance the ecosystem

i)mimicry is a similarity of one species to another that protects one or both.
An example of this is the cuckoo bee.
ii)Camouflage is the structural adaption that enables specie s to blend with their surroundings; allows a species to avoid detection by predators.

i)Their legs are adapted for running
ii)They adapts the leathery forewings as
temina to provide a protective cover for the second set of wings.
iii)they evolved mandibles to bite and chew solid food.

i)It reduces the quality and quantity of the crops
ii)it reduces their productivity

i)by refrigerating
ii)by salting
iii)by drying
iv)by the use of silos

i)in medicine
ii)in crime detection

i)Inadequate resources
ii)Small planting space

Succession is the change in either species composition, structure, or architecture of vegetation through time.

i)it kills microorganisms
ii)It leads to soil erosion
iii)It lost of soil nutrients

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