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A fish dies if placed in water which has been boiled and then allowed to cool explain

Which cell organelle lies outside cell membrane

Which option can be used for the blank?

______ are reared by the farmer for commercial purposes.

What is vaccine ? How does it boost our immunity?

In what way is malaria usually transmitted to humans?

Why meristematic tissue lack vacoules?

What is integranal thylaloid..??

Blockage in any coronary artery of the heart leads to:

A farmer wants to increase his crop yield using high yielding and pest resistant varieties of seeds. Which of the following biology experts should he consult?

The animals which are exclusively aquatic, sessile with cellular level of organization of the body are placed in phylum _____.

Question 17
Which of these organisms have a cell wall that isn't made of cellulose?

(a) Bacteria
(b) Hydrilla
(c) Mango tree
(d) Cactus

Brush border is a characteristic of

The number of RBC per mm³ of blood is approx. 5.5 million. If the average body contains 5 litres of blood, what is the total number of RBC in the human body? Write it in the standard form.

Which are functions of lymph?

The breathing centre in the brain responds to changes in the

What are differences between the following:
(a) Cartilaginous fishes and bony fishes;
(b) Amphibia and Reptilia;
(c) Aves and mammals.

Explain the various methods of crop improvement. Name one improved variety of Rice, Maize, Soyabean, Sunflower and Mustard.

In cloning of cattle, a fertilised egg is taken out of the mother's womb and

Among the following which is not a macronutrient?

Choose the correct option with respect to the given statements.
Statement 1: All cells come from pre - existing cells.
Statement 2: All cells have a cell wall.

WBCs are also called___.

Name two classes of chordates in which clawed digits are present.

Joint between ribs and sternum is a/an __________ joint.

A single strand of DNA is composed of repeating

The break down of glucose during respiration is due to particular

Which of the following descriptions defines malnutrition?

The "all-or-none" concept of skeletal muscle contraction means that

Which of the following is/are not the characteristics of human beings?

'Blue Revolution' is related with

Prokaryotes are included in which of these kingdoms?

Glycolysis is a process

(a) in which glycogen is broken brown into glucose

(b) which occurs in mitochondria

(c) in which glucose is broken down into pyruvate

(d) that occurs next to Krebs cycle.

Starch is a

Question 44
Why do we believe chloroplast and mitochondria to be semi-autonomous organelle?

What is rain gauge?

In potato, starch is stored in :
(a) Sclerenchyma
(b) Collenchyma
(c) Parenchyma
(d) Chlorenchyma

Mention true or false. If false, write the correct statement.

1. Micropyle serves for the emergence of radicle.

Cotyledon,endosperm,embryo,hilum- odd one out and why

Set up an experiment to measure gain and loss of heat by water, sand and air.

The reservoir for the gaseous type of biogeochemical cycle exists in

A drill with radius 1 cm cuts a hole through a casting 3.5 cm thick. The amount of metal removed is

If vacuole prevent cell bursting then how plasmosis happen

Saliva converts_________________.