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What is the difference between semi permeable and selectively permeable?

Plant cell has a cell wall made of :
(a) Protein
(b) Fructose
(c) Cellulose
(d) Fatty acids

If a pea plant ovary has 20 ovules. Then the maximum number of (i) megaspores and (ii) functional megaspores in that ovary will be

Which of these voluntary muscles are striated?

What is the location of following in the cell :

(a) Chromatin

(b) Chromosome

(c) Tonoplast

(d) Nucleolus

One should not sleep under a tree at night because of the

What is ozone layer (=umbrella)?

Give two examples of cartilage.

Movement is not regulated by sphincter or valve during

Which tissue is responsible for growth in cut grass-

Apical meristematic tissue

Or intercalary merustemeris tissue?

Can we consider cluster of eggs as a tissue? Why?

Which of the following habits would help us to keep our skin clean?

The statistical study of human population is termed as:-

How do microorganisms cause disease in humans? [3 MARKS]

Find the odd one out.

Which of the following is true regarding binomial nomenclature?

Match the following:

$$\begin{array}{cccc}& \text{A}& & \text{B}\\ \text{1}& \text{Bile juice}& \text{a}& \text{Carbohydrate digestion}\\ \text{2}& \text{Trypsin}& \text{b}& \text{Digestion of fats}\\ \text{3}& \text{Lipase}& \text{c}& \text{Emulsification of fats}\\ \text{4}& \text{Amylase}& \text{d}& \text{Digestion of proteins}\end{array}$$

Sneha follows some practices everyday. Which of the following practices will help to maintain social hygiene?

Sometimes fish are cultured with:

Which vitamin are found high in broiler?

Which of the following organisms comes under the category of spiny-skinned organisms?

Which of the following are the symptoms of leprosy?

(I) Paralysis

(II) Persistent cough

(III) Deformity

(IV) Nervous loss of sensation

In ECG, the depolarisation of atria is indicated by

Forelimbs in birds are:

Identify the cells above and choose the correct option.

Identify the type of teeth in the image.

Match Column - I with Column - II and select the correct answer using the codes given below the columns.

$\begin{array}{cc}\text{Column - I}& \text{Column - II}\\ \text{A. Mitochondria}& \text{P. De Duve}\\ \text{B. Golgi}& \text{Q. Camello golgi}\\ \text{C. Nucleus}& \text{R. Benda}\\ \text{D. Lysosomes}& \text{S. Robert Brown}\end{array}$

Digestion in ___ will be affected if bile does not reach its action site.

Food in the mouth is broken down into small pieces by __________.

The respiratory volume that cannot be measured using spirometer is

Growing two or more crops at the same time in a field is called:

Which one of the following blood cells is involved in antibody production.
(a) B - lymphocytes (b) T - lymphocytes
(c) RBC (d) neutrophils

Differentiate between the following

a] Bee keeping and Poultry farming

Write down three unique characteristics of storage structure.

what is contractile unit of muscle fibre?

Simple squamous epithelium will have ___ layer(s) of flattened cells.

Organelles found outside a eukaryotic cell and usually involved in movement of the cell or movement of substances past the cell are called

Which of the following is not a greenhouse gas?

The most appropriate characteristic of a semi-permeable membrane is that

(a) it has minute pores.
(b) it has no pores.

(c) it allows the solute to pass through but not the solvent.

(d) it allows a solvent to pass through freely but prevents the passage of the solute.

The different types of food shown in the given picture are generally sour in taste and rich in a type of vitamin which helps our body to fight against many diseases. Identify the vitamin.

Why vegetables kept in the refregerator gets dry?

Ex of Monocots and dicots

How widal test is used in diagnosis of typhoid?

Menses consists of______of the______of uterus along with ____, which comes out through the vagina.