Available Answers

1. 1.

   Name the following.

   1. The vascular tissue that transports water and minerals from roots to the leaves and other parts of a plant.
   2. Blood vessels that carry blood from the heart to the diferent parts of the body.
   3. An organism that reproduces through multipie fission.
   4. The structure whose different parts are cell body, dendrites, and axon.
   5. Single-celled fungus that is used for baking bread and other products.
   6. Fungus that is found in citrus juice and is used to preserve bottled and canned food.
   7. The practice of growing fruits, vegetables, and some ornamental plants.
2. 2.

   Give technical terms for the following:

   1. The transport of manufactured food from one part of a plant to another.
   2. Disease caused by the insufficient production of a hormone, called insulin.
   3. The fusion between male and female gametes.
   4. Any change in the environment to which an organism reacts.
   5. Bacteria that converts ethyl alcohol into acetic acid.
   6. Reproduction involving one parent.
3. 3.

   Write T for True and F for False. Correct the False statements.

   1. Budding, binary fission, and vegetative propagation are modes of asexual  reproduction in animals.
   2. The brain and the spinal cord together make up the autonomic nervous system.
   3. Farmers use chemical fertilizers for organic farming.
   4. Malaria is a vector borne disease.
   5. Animals used to carry heavy load are called milch animals.
   6. Catla, Rohu, and carps can be reared by the practice of apiculture.
   7. Polio is a bacterial disease.
4. 4.

   Choose the correct option to fill in the blank.

   1. ____________ (Cuticle/lenticel) is the outermost waxy layer present on the surface of leaves and the stem.
   2. In ____________ (sexual/asexual) reproduction, only one parent is involved.
   3. Plants cultivated on a large scale are called ____________ (crops/weeds).
   4. The relaxation phase of chambers of heart is known as _____________ (diastole/systole).
   5. Jersey is a common foreign breed of _____________ (cow/buffalo).
   6. _____________ (transpiration/Photosynthesis) involves evaporative loss of water from aerial parts of plants.
5. 5.

   Circle the odd one.

   1. Ticuspid, Aortic, Bicuspid, atrium (Hint: Valves of the heart)
   2. Wind, Insects, Calyx, Animals (Hint: Agents of pollination)
   3. Wheat, Rubber, Jute, Cotton (Hint: Cash crops)
   4. Vas deferens, Uterus, Urethra, Testes (Hint: Parts of the male reproductive system)
   5. Axon, Cyton, Dendrite, Synapse (Hint: Parts of the neuron)
6. 6.

   Match the following.

   Xylem Antigens Cashewnuts and cotton Silkworms Wheat and rice

   Cereals Flacherie disease Transport of water and minerals Cash crops Evoke the release of antibodies