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Does the medulla oblongata function when we are at sleeping

Identify the nucleus in the given cell.

Question 125

Solve the following question:

A General wishes to draw up his 7500 soldiers in the form of a square. After arranging, he found out that some of them are left out. How many soldiers were left out?

What is the special feature of the musk deer?

Which one of the following is enveloped with a single membrane?

लक्ष्मण और परशुराम के संवाद का जो अंश आपको सबसे अच्छा लगा उसे अपने शब्दों में संवाद शैली में लिखिए।

In precision farming, which of the following parameters is/are tested before cultivation?

Which of the following is an important event that takes place in the fallopian tube?

Which among the following three are correct regarding the waves of extinction due to human migration?

$$\begin{array}{cccc}\text{S.No}& \text{Sequence}& \text{Wave of extinction}& \text{Driving force}\\ i.& 1^{st}& \text{Hunting}& \text{Food}\\ ii.& 2^{nd}& \text{Agriculture}& \text{Commercial needs and hunger}\\ iii.& 3^{rd}& \text{Harnessing of fossil fuel}& \text{Need of coal, oil and natural gas}\end{array}$$

Question 2 (b)

Which of the following is an antibiotic?



a) Sodium bicarbonate

b) Streptomycin

c) Alcohol

d) Yeast

The micro-organism which is capable of converting sugar into alcohol and carbon dioxide is :

(a) bacterium (b) fungus (c) alga (d) protozoan

The type of farming in which organic manure and natural pesticides are used instead of chemicals?

Name the method of pollination based on pollinating agent observed in the picture?

Based on the given excerpt, answer the given question.



Stamen is regarded as a microsporophyll that possesses microsporangia which have microspore mother cells that give rise to microspores. The cells of sporogenous tissues undergo meiotic division to form microspore tetrad. Microspore is present in the bilobed structure called anther. A male gametophyte is a gamete producing haploid phase in a plant. In angiosperms, it is the pollen grains that are regarded as gametophytes.



Match the labels with their correct description in the given diagram of microsporangium showing different layers of its wall.

[1 mark]

Which of the following chemicals are present in tobacco?

Question 8

A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains



(a) complex proteins

(b) simple proteins

(c) fats

(d) starch

Aneuploidy of which chromosome causes Patau syndrome?

Which of the following are bacterial biofertilisers?

Which two domains in the six-kingdom classification include prokaryotic organisms?

The ___________ recieves, processes and interprets information coming from the senses and sends out the messages destined for the effector.

Why do female frogs (or female fish) lay hundreds of eggs ?

The process of removing unwanted plants from a crop field is called :

(a) breeding (b) weeding (c) transplanting (d) harvesting

The multicelluar organism which reproduces by budding is :

(a) Amoeba

(b) Yeast

(c) Paramecium

(d) Hydra

What do you mean by stain

What is the process by which Chaff is separated from grain?

Name two vaccinations meant for animals.

Write the chemical formula for Ozone gas? What was the major depleter of ozone in the past? What does ozone protect from? [3 MARKS]

Nissl's granules are absent in the

Plants that do not have a well-differentiated body fall under which of the following groups?

What is endospore formation?

What term is used for the secretions of endocrine glands ?

aids is communicable disease or not? if not why?

With respect to the following statements, choose the correct answer.
i. Food security depends on both, the availability of food and access to it.
ii. Mixed farming degrades the nutrient quality of the soil.
iii. Fertilisers are commercially produced plant nutrients.

A gland W is located just below the stomach in the human body. The gland W secrets a hormone X. The deficiency of hormone X in the body causes a disease Y in which the blood sugar level of a person rises too much. The person having high blood sugar is called Z. What are X, X, Y and Z ?