Posted by 
Under: ALWAYS SUBSCRIBE WITH US
WAEC GCE BIOLOGY SOLUTION
6aii
Density” in plant ecology is defined as the number of individuals of a given species that occurs within a given sample unit or study area. Density is often used in a vegetation survey to describe a species’ status in a plant community.
6aiii
Size is a fundamental feature of living things, from the dimensions of an animal to those of its component organs, cells, and organelles. … At the scale of millimeters to meters, the size of an organ or animal depends mainly on the size and number of cells it contains.
[14/12, 10:52] CODEDBOSS: 1b
i. Development and growth. After meiosis has produced a gamete, and this has fused with another gamete to form an embryo, the embryo grows using mitosis. …
ii.Cell replacement. …
iii.Asexual reproduction.
[14/12, 10:52] CODEDBOSS: WAEC GCE BIOLOGY SOLUTION
6ai
Dominance in genetics, greater influence by one of a pair of genes (alleles) that affect the same inherited character. If an individual pea plant with the alleles T and t (T = tallness, t = shortness) is the same height as a TT individual, the T allele (and the trait of tallness) is said to be completely dominant.
6aii
Density” in plant ecology is defined as the number of individuals of a given species that occurs within a given sample unit or study area. Density is often used in a vegetation survey to describe a species’ status in a plant community.
6aiii
Size is a fundamental feature of living things, from the dimensions of an animal to those of its component organs, cells, and organelles. … At the scale of millimeters to meters, the size of an organ or animal depends mainly on the size and number of cells it contains.
6b.
i. Skin that prevents loss of water.
ii. Eyelids that allow them to adapt to vision outside of the water.
iii. An eardrum developed to separate the external ear from the middle ear.
iv.A tail that disappears in adulthood (in frogs and toads).
[14/12, 10:52] CODEDBOSS: SECTION A
NUMBER 1A
Growth is seldom random. Rather, it occurs according to a plan that eventually determines the size and shape of the individual. Growth may be restricted to special regions of the organism, such as the layers of cells that divide and increase in size near the tip of the plant shoot.
NUMBER 1i (Tabulate form)
Growth in Plant
- Growth take place during definite seasons.
- Growing pattern is distinct each species.
- Plant possess well-defined growing regions.
- A seedling does not resemble an adult plant.
Growth in Animal
- Growth takes place for definite periods before maturity.
- Here it does not involve increase in the number of parts.
- Each species has a distinct season for growth.
- Growing pattern is absent
[14/12, 11:08] CODEDBOSS: (6di)
i.Algae
ii. Fungi
iii.chemoautotrophs
6dii)
i. Prokaryotes
ii. Nitrogen-fixing bacteria
iii) Nitrifying bacteria
[14/12, 11:08] CODEDBOSS: 3 mode of nutrition
Autotrophic
Chemosynthetic
Holozoic
[14/12, 11:08] CODEDBOSS: (3a)
TABULATE
BIOLOGY ASSOCIATION || EXAMPLE
Commensalism – Sharks and remora fish, Tigers and golden jackals
Mutualism – Bees and flowers, humans and bacteria in the gut
Parasitism – Humans and tapeworms, cows and ticks
Neutralism – Rainbow trout, and dandevon cactus and tarantulas
(3b)
Pollution can referred to as the introduction of harmful materials or substances into our environment thereby causing adverse charges.
(3ci)
(i)It contributes to global warming
(ii)It leaves a huge carbon footprints
(3cii)
(i)it also contributes to global climate change
(ii)It emits mercury which is a neurotoxin as well as carbon dioxide
(3ciii)
(i)When it spills in aquatic bodies, it causes loss of aquatic lives
(ii)On land, crude oil spills reduce food productivity
🤒🤒🤒🤒
