The Fundamental Unit of Life — Science STD 9 — Question

Tapeworm is member of phylum:

1. Annelida.
2. Porifera.
3. Nematoda.
4. Platyhelminthes.

For each of the following, use letters to indicate wheather the matter is element (E), compound (C) or mixture (M).

S.No.	Matter	Classification
1.	Water
2.	Mercury
3.	Air
4.	Tin

Generally, smaller the cell:

Which of the following is not a feature of chordates?

Name the sounds of the frequencies given below 10Hz.

The unit of measuring momentum of a moving body is:

1. ms^-1
2. kg ms^-1
3. kg ms^-2
4. Nm²kg^-2

Guard cells are present in:

1. Cork.
2. Cortex.
3. Stomata.
4. Vascular bundle.

The first experiment in artificial insemination was performed by:

The most common type of ground tissue is:

Each of the following statement describes a force acting. Which force is causing work to be done?

1. The weight of a book at rest on a table.
2. The pull of a moving railway engine on its coaches.
3. The tension in an elastic band wrapped around a parcel.
4. The push of a person's feet when standing on the floor.