Correct Answer: B. hostile

Correct Answer: C. joint

Correct Answer: B) 3

Explanation

During fertilization, a pollen tube grows from a pollen grain and enters the female ovule. The pollen tube contains two sperm nuclei. One sperm nucleus fertilizes the egg cell to form the zygote, while the other sperm nucleus fuses with the two polar nuclei to form the endosperm. Therefore, there are three nuclei present during fertilization: the two sperm nuclei and the polar nuclei. Therefore, the correct answer to the question is option B: 3. It is important to note that fertilization is a crucial process in sexual reproduction, and it leads to the formation of a zygote that later develops into a new organism. To learn more about this, please read the relevant sections of the recommended textbooks.

Correct Answer: A. Price will fluctuate

Correct Answer: A. debilitating

Correct Answer: B. Conjugation in Spirogyra

Correct Answer: B. cannot be recharged but the secondary cell can

Correct Answer: B) Isaac to Abraham

Explanation

In this question, we are being asked who said Behold the fire and the wood, but where is the lamb for a burnt offering? and to whom it was said. The correct option is B, which states that Isaac said this to Abraham.

This statement comes from the story of Abraham and Isaac in the book of Genesis in the Bible. In the story, God asks Abraham to sacrifice his son Isaac as a burnt offering to Him. Abraham obeys and takes Isaac to a mountain to carry out the sacrifice. When they get there, Isaac notices that they have the fire and wood for the sacrifice but they do not have a lamb. He asks his father where the lamb is, and that is when Abraham responds with the statement in the question: Behold the fire and the wood, but where is the lamb for a burnt offering?

So, in summary, Isaac said the statement in the question to his father Abraham during the story of the sacrifice of Isaac in the book of Genesis. This story is an important one in the Christian faith and is often used to illustrate the importance of obedience and faith in God.

Correct Answer: B. capitalism

Explanation

(a)

(b) Tractors parts involved in coupling and operation of implements: (i) top link (ii) lower links (iii) side chains (iv) P.T.O shaft (Power Take Off Shaft)

(c) Tractor maintenance practices: (i) regular lubrication of movable joints/parts (ii) replacement of worn out parts (iii) adjusting/tightening loose nuts and bolts (iv) checking and maintaining tyre pressures (v) checking and maintaining battery electrolyte level (vi) ensuring functional brakes (vii) checking and maintaining the electrical systems (viii) straighten/repair dented parts (ix) weld broken part (x) checking oil level (xi) checking radiator water level (xii) draining off the engine oil according to manufacturer's specification (xiii) clean/ wash after use (xiv) keep in a cool and dry place.