Which one of the following is NOT a reflex action?
THE ITEM is based on the following statement.
John, Simon and Harry are cousins who live in the same house.
Which of the following terms BEST describes their relationship?
After Lloyd's father died, Lloyd invited his mother to live with his wife, his two sons and himself. The new family structure would be termed.
The two main protein groups are globular and:
The white blood cells that produce antibodies are called:
A spring is 100 mm long when unstretched. A 40 N load is hung from it, and its total length increases to 120 mm. A different load on the spring causes it to become 150 mm long. If the spring obeys Hooke′s Law, this second load is:
The Haber Process is used to make:
The constitutions of Commonwealth Caribbean countries guarantee citizens freedom of conscience, expression, assembly and movement. These freedoms are usually referred to as
A girl whose weight is 250 N walks up a slope 40 m long onto a platform 3 m high. Her gain in gravitational potential energy is:
When testing a leaf for the presence of starch, the correct sequence of procedures is:
Which of the following sets has an infinite number of members?
Which of the following can cross the placenta from mother to fetus?
January 1, 1999 a trader bought 100 articles at $5.00 each. During the month 70 Of the articles were sold at $8.00 each and the remainder were sold on January at the market value of $3.00 each. What was the gross for the month?
Which of the following are advantages of asexual reproduction in a flowering plant?
Ⅰ Large numbers of offspring are rapidly produced.
Ⅱ Favourable genotypes are maintained from one generation to the next.
Ⅲ The plant does not need to rely on wind or insects for pollination.
Ⅳ Several identical individuals grow close together.
One Faraday represents:
A species of mouse has 32 chromosomes in its muscle cells.What will be the numbers of chromosomes in the mouse′s skin cells and sperm cells?
Crossing two brown mice produced an offspring with a black coat.Which of the following statements MUST be correct?
Ⅰ Brown coat is dominant to black.
Ⅱ The brown mice were heterozygous for coat colour.
Ⅲ The black mouse was homozygous for coat colour.
Ⅳ Crossing a black mouse with another black mouse could produce a brown offspring.
A boy throws a cricket ball straight up in the air. At the very top of its flight:
A certain nucleus has 12 protons and 16 neutrons.Which one of the following statements about the nucleus is NOT true?
We use expanded polystyrene cups for heat of reaction experiments because the cups are:
