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For heterotrophic organisms, competition is least caused by the inadequacy of
A green snake in green grass is able to escape notice from predators because of its
The most important adaptation of xerophytes is the ability of the protoplasm to
The ability of an organism to live successfully in an environment is known as
The role of the male adult honey bee is to
The stem of a typical aquatic plant usually has many
Darwin is considered the first scientist who correctly explained the theory of
In man, the ability to roll the tongue is a variation classified as
A tall plants crossed with a dwarf one produces offspring of which half are tall and half are dwarf. What are the genotypes of the parents?
Which of the following is likely to encourage inbreeding in plants?
Which of the following statements is true of blood groups and blood transfusion?
The probability of a baby being a boy or a girl depends on the contribution of the
Both recessive and dominant characters are found
The distribution of plants in a rain forest is governed mainly by
The hygrometer is used for measuring
A freshwater pond may contain
The physical space occupied by an organism together with its functional role in community can be described as
The greatest influence on a stable ecosystem in nature is exerted by
The highest percentage of energy in an ecosystem occurs at the level of the
The epiphytic habitat can best be described as