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What are infrasounds and ultrasounds? [2 MARKS]

1.Washing the beans
2. Cutting the beans
3. Washing again

Name the three Indian varieties of honey bee are used in an honey production how is Italian variety better for honey production

Global warming has occurred due to the rise of __ in the earth's atmosphere.

Which of the following animal does not have a segmented body?

The contractile unit of muscle is a part of myofibril between

What is the role of xylem tissue in plants? [3 MARKS]

Question 35 (b)
Write true (T) or false (F)
(b) Monera is divided into Archaebacteria and Eubacteria.

Match the following organelles with their cellular significance; and choose the correct option from the codes.
$\begin{array}{cc}ColumnI& ColumnII\\ i).\text{Ribosome}& a.\text{Steroid synthesis}\\ ii).\text{Smooth ER}& b.\text{Hydrolytic activity}\\ iii).\text{Lysosome}& c.\text{Formation of Spindle Fibres}\\ iv).\text{Centriole}& d.\text{Protein synthesis}\end{array}$

Choose plant’s micronutrients and macronutrients from the following.

Iron, Chlorine, Sulphur, Copper, Nitrogen, Calcium, Manganese, Potassium, Zinc. Magnesium, Molybdenum, Phosphorus.

What is the formula for ozone?

Tina observed a permanent slide of a plant tissue with thin walled cells, loosely packed with large intercellular spaces. Identify the tissue.

Give one example of

(a) Urochordata; (b) Cephalochordata.

Name two products of honey bee, expect honey.

Name two natural pesticides.

What is the contribution of Carl Woese (1977) in classification of living beings?

Give one example of protective tissue in plants.

Give one example of phylum Hemichordata.

Which type of epithelial tissue is present in the cornea of the eye?

Correctly label the following diagram.

A. Still, Sophie might need open-heart surgery later in life and now be more prone to respiratory infections.
B. But with the news that his infant daughter Sophie has a hole in her heart, he appears quite vulnerable.
C. While the condition sounds bad, it is not life threatening, and frequently corrects itself.
D. Sylvester Stallone has made millions and built a thriving career out of looking invincible.

(CAT 1996)

What is the term given to waste produced by services, example: street cleaning, landscaping, parks, beaches, recreational areas, water, waste water treatment plants.

Give the scientific names of man, domestic cat, and peepal tree.

Cardiac muscles are straited muscles with fibres being

The percentage of energy of the sunlight that is converted into food by the green plants is:

Match the joint with the bone they join.

$\begin{array}{cc}i.Synovialjoint& a.Elbowjoint\\ ii.Pivotjoint& b.Thumbjoint\\ iii.Saddlejoint& c.Carpalboneinwrist\\ iv.Hingejoint& d.Hipjoint\\ v.Ballandsocketjoint& e.Kneejoint\\ vi.Condyloidjoint& f.Neck\left(axisandatlas\right)\end{array}$

Which one of the following pairs of types of teeth perform one common function as stated against it ?

(a) Incisors, canines - Holding

(b) Canines, premolars - Tearing

(c) Premolars, molars - Grinding

(d) Molars, incisors - Tearing

Write a short note on intercalary meristem.

Given below are four statements.With respect to these statements choose the correct option(s).

Statement 1: RBCs carry out gylcolysis.

Statement 2: RBCs derive ATP through electron transport chain.

Statement 3: RBCs are derived from hemocytoblasts.

Statement 4: RBCs are concave shaped.

What is the difference between typhus and chicken pox

If the gaps in the leaf of photosynthetic plants as shown in picture below are absent, then it would lead to ___________.

which of the following is not an example for annelids

Define a flower.

___ is the protective layer of radicle.

Mention one advantage of mixed cropping .

In physical appearance,what is the difference between male female cockroach

The flowers which are pollinated by nocturnal animals or birds are usually ___ in color.

1. white

   
   

In __(communicable/non-communicable) diseases, the germ cannot spread from a patient to another person by contact or by any other method.

The cervical and the lumbar vertebrae form an outward curve, which is called (i)_______, while the thoracic and sacral vertebrae form an inward curve called (ii)_______.

_________ is a cross between a goat and a sheep.

Why in bubonic plague the face of a human becomes black?