Which of the following pH values is the best for the action of the emzymes – renin and pepsin in the stomach?

Which of the following enzymes is not one of the main classes of enzymes

Which of the following organisms is a primary consumer

The sudden change in a gene structure or chromosome number in an organism likely to cause known as

A seed of a flower plant can best be described as

Which of the following physical factor is likely to affect the distribution of plants in a pond?

Evidence for evolution include the following except

The colour that is associated with a positive iodine test is

Which of the following statements about ecosystems is false?

The effects of environmental degradation caused by human activities can be controlled by the following measures except

A man suffering from obesity must avoid meals containing

Which of the following diseases is not hereditary

Population growth rate may be defined as the

The transfer of ripe pollen grains from another to the stigma of the same flower is termed

The following life processes are common to both plants and animals except

Which of the following statements about the development of the foetus is not correct?

Which of the following processes is not an example of a reflex action?

Which of the following organisms feeds both autotrophically and heterotrophically?

A termite with a relatively large head and powerful Jaws is likely to be

In the binomial system of naming organism, the second name is called the

Which of the following inherited conditions usually shows incomplete dominance?

Which of the following instruments is used to measure wind speed?

Plant hormones includes the following except

Which of the following statements is correct about organs?

Which of the following substances has the highest amount of energy in joules per unit weight?

Two organelles directly involved in mitotic cell division are

An organisms which maintains a constant temperature irrespective of environment temperature fluctuation is

Which of the following statements best describe pollination? The transfer of pollen grain from

The order of prmary succession by plants in a very dry habitat is

Finger prints are useful in crime detection because

Which of the following organisms is well adapted for fluid feeding?

Which of the organisms does not show colour adaptation to its environment?

Which of the following substances is not a conservable natural resource?

The first step in carrying out ecological studies in a terrestrial habitat as

Which of the following organisms has kidney as their excretory organ?

The persistent presence of glucose in a person’s urine indicates malfunctioning of the

Which of these diseases cannot be spread by an insect?

A group of closely related organism capable of interbreeding to produce fertile offspring are known as members of

Which of the following organisms are the producers in an aquatic habitat?

The accepted concepts for theory of Natural selection does not include

Which of the following processes does not contribute towards growth?

Which of the following organisms is not considered as a parasitic plant?

Territoriality is a phenomenon among

What does the chemical composition of the genetic material of all living organisms consist of?

The order of evolutionary trend in plants is

The ear pinna is strengthened by

The importance of the concentration of chloroplast in the palisade layer of the leaf is for maximum exposure to

The following practice can contribute towards the conservation of natural resources except

The axial skeleton is composed of the

The mode of nutrition common to green plants is