1. Why is transport of materials necessary in a plant or an animal? Explain. 2. What makes the blood look red?
3. Why is it necessary to excrete wasto products?
4. Describe the function of the heart,
5. Does transpiration serve any useful function in plants? Explain.
6. What are stomata? Give two junctions of stomata.​

1 so that all parts of the plants and animals Get Enough nutrients and oxygen

2 the pigment called haemoglobin makes it red

3 waste products such as urea will cause great harm to the body is not excreted

4 the heart pumps blood the blood contains nutrients and oxygen facial transported to other organs so that the cells can operate

5 transpiration is the loss of water by plants. it helps with cooling down the plant after photosynthesis. Just the Way We sweat

6the stomata opens and closes to allow water to pass through it therefore transpiration occurs

1 The cells of different organs of plants and animals need various necessary substances to carry out many metabolic activities and different type of waste products are created during these metabolic activities. So, transport of materials is necessary to supply the required substances and to remove the waste products.

2 Human blood is red because of the protein hemoglobin, which contains a red-colored compound called heme that's crucial for carrying oxygen through your bloodstream. ... That's why blood turns bright cherry red when oxygen binds to its iron. Without oxygen connected, blood is a darker red color.

3 When our cells perform their functions, certain waste products are released. These are toxic for our body and hence need to be removed from the body.

4 The human heart is an organ that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes. "The tissues of the body need a constant supply of nutrition in order to be active," said Dr.

5 Transpiration serves a very important function in plants. It is the loss of water through stomata. Transpiration creates the transpiration pull, which is responsible for the rise of water to great heights in tall plants and other trees.

6 The tiny pores or openings present under the leaves of the plants is called stomata. Two functions of stomata: (i) It helps in breathing of the plants. (ii) It helps in exchange of gases which takes place inside the plant cells.