In his theory of evolution, Darwin implied that
the struggle for existence among living organisms is sporadic
the most successful organisms are those that best adapt to their environment
organs of the body which are not regularly used by an organism will disappear
any traits acquired by an organism during its lifetime can be passed unto its offspring
Correct answer is B
No explanation has been provided for this answer.
a tropical rain forest
a guinea savanna
a sahel savanna
an estuarine swamp
Correct answer is B
A transect is usually used to investigate a gradual change in a habitat rather than to simply estimate the number of organisms within it.
The characteristics of the Guinea Savanna include:
the largest of all vegetation belts in Nigeria;
tall grasses;
few scattered trees.
The excessive use of agro-chemicals could lead to the pollution of
the lithosphere
the atmosphere
fresh water
space
Correct answer is C
No explanation has been provided for this answer.
The addition of lime to clay soil serves to
aid water retention
close up the texture
prevent water logging
improve capillary action
Correct answer is D
No explanation has been provided for this answer.
The supporting tissue in xylem is most poorly developed in
mangrove swamp plants
grassland plants
submerged water plants
desert plants
Correct answer is C
No explanation has been provided for this answer.