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Which of the following muscles get exhausted faster?

What is the name given to coloured bodies that are found in the plant cells only?

The period of life when the body undergoes changes, leading to reproductive maturity is called______.

Statement(S) : A Mule and a liger are not considered to be separate species. Reason(R) : Mules and ligers are infertile and cannot give rise to their own offsprings.

What is the process in which caterpillars turn into butterflies?

Which of the following is not a way of transmission of pathogens?

What is Altman's granules?

Which of the following are connective fluid tissues?

Why is paddy a kharif crop although it is a Rabi crop

The closing of leaves of Mimosa plant (lajwanti) when touched is an example of:

Which of the following contain ribosomes?

A double membraned cell organelle which helps in giving different colors to the plants is __

Why are the plants of a snowy cold mountain and the plants of a hot arid desert different in structure and shape?

1. Snowy Mountain: Pine Tree

2. Hot Desert: Cactus Plant

Fill in the blanks.

(a) Charcoal is produced by burning wood ………… .

(b) All fossil fuels contain ………… compounds.

(c) ………… and ………… are renewable sources of energy.

(d) In Maharashtra there is an atomic power project at ………… .

Loading of sucrose into sieve tube cells is done by (i)_______ and the unloading of sucrose from the sieve tube cells is done by (ii)________.

Male condoms are worn

What is in a Nucleus from Chromosomes to RNA?

Which fish is a major delicacy of people of West Bengal?

Which of the following hormones are released by the pituitary gland?

$\begin{array}{cccc}& \text{Components of Reflec Arc}& & \text{Functions}\\ 1& \text{Receptor}& \text{a}& \text{Receives information from efferent nueron and shows appropriate response}\\ 2& \text{Afferent neron}& \text{b}& \text{Carries information from spinal cord to the effector organ}\\ 3& \text{Interneuron}& \text{c}& \text{Process information and Generates response}\\ 4& \text{Efferent Neuron}& \text{d}& \text{Receives information and generates impulses}\\ 5& \text{Effector}& \text{e}& \text{Carries information from receptor to inter neurons in the spinal cord}\end{array}$

Reproductive age in women starts when their :

(a) menstruation starts (b) breasts start developing

(c) body weight increases (d) height increases

Anopheles mosquito is the vector of the malarial parasite which is called ___ .

Which one of the following favours the fastest transpiration rate?

How could we supply nutrients to the soil?list some advantages of preparing a soil?

Which of the following are varieties of honeybee?

The species P and Q of wild animals are found exclusively in a 'particular area'. The species R of wild animals is listed in Red data book of India whereas species S of wild animals no longer exists anywhere on the earth.
(a) What name is given to species like P and Q?
(b) What are the species like R known as?
(c) Name one species like R.
(d) What is the special name of species like S?
(e) Name one species like S.

Which of the following can be made into crystals?

A bacteria undergoes binary fission in every minute .

This bacterium can fill up a cup in 1 hour . In how much

Time will the cup half filled

Rhizobium bacteria in the root nodules of leguminous plants help in fixing:

Which is the cell organelle that initiates cell division in animal cells?

Enter 1 word only.

What is the name of micro-organisms which reproduce only inside the living cells of other organisms ?

Where is the kangaroo found? What is its special feature?

Which of the following should be used by a farmer with a large farm to harvest his crops quickly and efficiently?

Which of the labelled parts in the given diagram contract together?

What will happen if deer becomes extinct in the food chain given below?
Grass $\to$ Deer $\to$ Tiger

Ram and Krishna both decided to grow wheat in their farms and bought seeds of the same quality. Ram cultivated chickpeas before wheat, whereas Krishna planted wheat directly with the required phosphate fertilizers. Ram's yield of wheat was 100 kg and Krishna's was 25 kg. How did Ram get a better yield than Krishna?

Identify A and B and also mention any one function of A. When does implantaion takes place. [3 MARKS]