In an ecosystem a population is:

Sea breezes result because:

0.0039 × 10^-2 in scientific notation is

Which of the following are all secondary sex characteristics in females?

A __________ is a sub-division of a track that stores data on a disk.

Which one of the following structures is responsible for controlling entry and exit of materials into and out of the cell?

Seeds are dispersed from the parent plant:

The imprest systems saves time in the posting of expenses to the nominal accounts because

The following are all minerals EXCEPT for:

The alkane compound with seven carbon atoms is:

If the relative atomic mass (RAM) = 1 for hydrogen and 16 for oxygen, the formula mass for H₂O₂ is:

A lack of vitamin D in the diet causes:

The Earth′s first atmosphere contained all of these gases EXCEPT for:

8x - 4(x - 5) =

A force of 100 N starts to act on a body of mass 20 kg which is initially at rest. After 10 s its velocity will be:

THE ITEM refer to the following family functions.

The family produces children and maintains the population.

Photosynthesis is important because:

The nucleus of a carbon atom has six protons and eight neutrons.Which one of the following describes it?

All of the following processes result in energy loss from an ecosystem EXCEPT for: