SSC (English Medium) 10th Standard - Maharashtra State Board Question Bank Solutions

Find an odd one out.

Theory of evolution : Darwin : : ____________ : Lamarck

Calyx : Sepals : : Corolla : ________________

Bisexual : Hibiscus : : Unisexual : ___________

Accessory whorls : Calyx and corolla : : essential whorls : ______________

Pollen tube reaches the embryo sac via style.

Pollen grains from anther are transferred to the stigma.

Define.

Inflorescence

What does germination mean?

Write the functions of sepals

Which animal has three pairs of legs?

Give scientific reason.

Flower is a structural unit of sexual reproduction in plants. 

Give scientific reason.

Fertilization in plants is called double fertilization.

What is inheritance of acquired characters?

Distinguish between self-pollination and cross-pollination.

Which phylum has the characteristic phenomenon ‘jointed appendages’?

Observe the following figure and answer the following.

1. Due to which common characteristic the animals shown in the figure belong to the same phylum?
2. The exoskeleton of these animals is made up of which chemical?
3. Give another two examples of this phylum.

Answer the questions based on the given paragraph.

Lady Bug Beetle

            Lady bug beetles are friends of farmers as they destroy harmful insects. It is a predatory insect, which lives on biting worm, white fly worm, white moth, flower insects and bread worms. It acts as a natural insecticide for crops like maize, jawar, cotton, sugarcane, cereals, vegetables, fruit trees, etc. These are attractive red or yellow or grey coloured insects. Many species of this insect are found in our farms. The lifecycle of this insect follows eggs, larvae, cocoon and moth stages. The eggs are found in flutter. The larvae are grey in colour. Larvae and adults both live on sucking insects.

1. How does the lady bug beetle live?
2. Of which colour the lady bug beetles are?
3. State the stages of its lifecycle.
4. How does it help the farmers?

Explain Lamarck’s Principle.