please answer this questions
Answers
Answer:
11. A cactus is able to survive in the desert due to the following features: (i) It has long roots that go deep inside the soil for absorbing water. (ii) Its leaves are in the form of spines to prevent water loss through transpiration. (iii) Its stem is covered with a thick waxy layer to retain water.
12. The names of five plants and their parts that we eat are:
- Carrot- Root.
- Potato- Stem.
- Apple- Fruit.
- Spinach- Leaves.
- Mustard- Seeds and leaves.
13. The primary functions of the stem are to support the leaves; to conduct water and minerals to the leaves, where they can be converted into usable products by photosynthesis; and to transport these products from the leaves to other parts of the plant, including the roots.
14. The term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical manifestation of its ecological niche.
Examples of aquatic ecosystem include oceans, lakes and rivers. An aquatic ecosystem includes freshwater habitats like lakes, ponds, rivers, oceans and streams, wetlands, swamp, etc. and marine habitats include oceans, intertidal zone, reefs, seabed and so on.
15. The garbage which contains non- biodegradable items like pieces of cloth, broken glass, aluminium wrappers, polythene bags, nails, broken toys, and old shoes cannot be converted into compost by red worms.
16. These are the seven characteristics of living organisms.
1 Nutrition. Living things take in materials from their surroundings that they use for growth or to provide energy. ...
2 Respiration. ...
3 Movement. ...
4 Excretion. ...
5 Growth.
6 Reproduction. ...
7 Sensitivity.
Answer:
11)
The major nutrients in our food are carbohydrates, proteins, fats, vitamins and minerals.
carbohydrates and protein provides energy
12 )
Carrot- Root.
Potato- Stem.
Apple- Fruit.
Spinach- Leaves
13 )
function of the stem are to support the leaves; to conduct water and minerals to the leaves, where they can be converted into usable products by photosynthesis; and to transport these products from the leaves to other parts of the plant, including the roots.
14 )
ball and socket joint is a freely movable joint in which the rounded surface of a bone moves within a depression on another bone, allowing greater freedom of movement than any other kind of joint.
15)
Garbage containing polythene bags, plastics, metals and glass cannot be decomposed by earth worms
16)
All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.