100% VERIFIED BIOLOGY OBJ ANSWERS
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(1a)
(i) Sunlight: It is source of energy for during photosynthesis
(ii) Chlorophyl: It traps solar energy and coverts it to chemical energy during photosynthesis

(1b)
(i) Humerus
(ii) Radius
(iii) Ulna
(iv) Scapula
(v) The ball and socket joint

(1c)
(i) They help in gathering food for the caste
(ii) circulating and maintaining the colony’s pheromones and food among each other via trophallaxis,
(iii) They help in tending to the eggs and nymphs
(iv) They help in taking care of the queen and king
(v) They help in constructing or repairing the nest, tunnels, galleries, feeding tunnels


(1d)
Ecosystem is a community of interaction between organisms and their environment.


(1e)
DRAWING


2ai)
a gene is a sequence of DNA or RNA which codes for a molecule that has a function. During gene expression, the DNA is first copied into RNA.


2aii)
Implantation: The act of setting in firmly. In embryology, implantation refers specifically to the attachment of the fertilized egg to the uterine lining, which occurs approximately 6 or 7 days after conception (fertilization).



2aiii)
a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus and denoted by a Latin binomial, e.g. Homo sapiens.


2aiv)
A saprophyte or saprotroph is an organism which gets its energy from dead and decaying organic matter. This may be decaying pieces of plants or animals.


2bi)
i) it gives support and shape to the body
II) it helps in the production of white blood cells
iii)it aids free movements
iv) it helps in the attachment of muscles
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3ai)
i) Liver fibrosis
ii) hepatitis
iii)hemochromatosis


3aii)
Plant cell
i) presence of cell wall
ii) presence of chloroplast
iii) Presence of sparse cytoplasm
iv) presence of small vacuole
v) Absence of centrosome


Animal cell
i) Absence of cell wall
ii) Absence of chloroplasts
iii) Presence of dense cytoplasm
iv) Presence of small vacuole
v) Presence of Centrosome

3b) CLICK HERE


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4) CLICK HERE


4ai) Diffusion is defined as the process by which molecules or ion move from a region of high concentrations to a region of low concentration until they are evenly distributed


4aii) Osmosis is defined as the process by which water molecules move from a region of dilute or wicker solution to stronger solution through a selectively or permeable membrane


4aiii) Plasmolysis is defined as the outward movement or flow of water from a living cell when they are place in an hyoertonic solution


4bi) Effect of over crowding are ;
1) Aggressive behavior
2) State of unrest


3) Decrease in reproductive ability
4bii) conservation of wild life are;
1) Indiscriminate killing of wildlife should be discouraged
2) Deforestation which destroy the habitat of animal should be discouraged
3) Killing of young developing animals should be allow.


5) CLICK HERE