animal tissue organ and organ system

ANIMAL TISSUE, ORGAN AND ORGAN SYSTEM

There is only one cell in the body of the animals of the phylum Protozoa. Animals of the Phylum Porifera are simplest multi-cellular animals. Their cells

ANSWERS TO QUESTION SET 001

ANSWERS TO QUESTION SET 001

1. C       2. A       3. A          4. A  

5. A       6. A       7. C           8. B

9. B       10. B



You want to check the questions che here Question set 001

QUESTION SET 001

INSTRUCTIONS.
a). Answer all the questions.
b). Check your answers by clicking on the link answer.

1.  The breaking down of organic compounds from complex to simpler with liberation of energy
    is called ?

A.catabolism.

B. hydrolysis

C. metabolism

D. Anabolism.

2. In which of the following organs does mucus play a protective role

A. Stomach
B. Oesophagus
C. Duodenum
D. Colon.

BIOLOGY

complex plant tissues

Tracheids: Cells are dead, long with transverse ends, containing large vacuole. Cell walls are

Male-Female determining chromosome:

Male-Female determining chromosome:

@@@$ IMPORTANT@@@

READ THIS

Every living being has a definite number of chromosomes. In human beings there are 23 pairs of chromosome. Among them 22. pairs are similar in both
male and female, these are Autosomes, AA. Members of the remaining pair of chromosome are different in male and female. This pair of chromosome determines the sex of human beings.

Division Of Labour In Multicellular Plants

Division Of Labour In Multicellular Plants :

Tissue and Tissue System

Tissue : In unicellular organisms a single cell does all the functions. There is no chance of division of labour on the basis of cell. In contrast, this kind of division is found in multicellular living body. In this case, it is observed that a group of cells performs the duty of manufacturing food; another group stores it, while the other group conducts the transport of food materials. There is further a group of cells that gives mechanical strenght to some organs. In many cases it is observed that a group of cells originating from a single origin remain closely attached in a place and collectively perform a similar type of function. This type of cells in a group is called tissue. In multicellular organisms division of labour is the main cause of formation of tissue.

Why were they called PROTOCTISTA?

CLASSIFICATION OF LIVING THINGS



2. KINGDOM PROTOCTISTA

This kingdom consist of three groups of organisms:- the protozoa, algae and the slime mould.

They are a diverse group with some formally classified in plant and animal kingdom.