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The measure of the maximum population that can be sustained by an ecosystem is

Lichen is usually cited as an example of 'symbiosis' in plants where an algal and a fungal species live together for their mutual benefit. Whcih of the following will happen if algal and fungal partners are seperated from each other?

(a) Both will survive and grow normally and independent from each other.

(b) Both will die

(c) Algal component will survive while the fungal component will die.

(d) Fungal component will survive while algal partner will die.

Based on your answer how do you justify this association as symbiosis?

In a plant organ covered by periderm or the cork cambium, the stomata are absent. Gaseous exchange occurs through

India inherited a legacy of challenges from the British. Comment.

Or

Discuss the indicator of underdevelopment observed in India during the British rule.

Describe modifications
of stem with suitable examples

Consider a random process $Y\left(t\right)$ defined as $Y\left(t\right)=X\left(t\right)-X(t+\tau )$ where $X\left(t\right)$ is stationary non-periodic process and ${}^{\prime }{\tau }^{\prime }$ is constant. If $R_X\left(\tau \right)$ is the autocorrelation of random process $X\left(t\right)$, then the variance of $Y\left(t\right)$ will be

A free-living anaerobic nitrogen-fixer is:

Coral reefs have a hard skeletons madeup of

Vascular bundle having phloem at the centre encircled by xylem is known as

' Bundle of His ' is a part of which one of the following organs in humans?

Protoplast is

Which of the following is/are not matched correctly?

What do the two axes (X and Y) represent?

X-axis Y-axis

During respiration, NADH donates two electrons to the carrier know as ubiquinone. When this happens, ubiquinone:

What was Mendel's most important contribution to the modern understanding of biology?

Discuss
the main steps in the digestion of proteins as the food passes
through different parts of the alimentary canal.

Which part of the ATPase enzyme forms a transmembrane channel in the thylakoid membrane which carries out facilitated diffusion of protons across the membrane?

Question 1

What are the desirable characters of bee varieties suitable for honey production?

Can we
call human evolution as adaptive radiation?

Which one of the following processes yields energy?

How does Douglas make clear to the reader the sense of panic that gripped him as he almost drowned? Describe the details that have made the description vivid.

During which stage of cell cycle would you
expect lowest amount of cellular growth and synthesis taking place?

The structure of intemediate obtained after the attack of $B{r}^{+}$ on anilinium ion is:

Consider the following statements and select the correct option

(A) Intercalary meristems occur in grasses.

(B) Apical and intercalary meristems are primary meristems.

(C) Vascular cambium and cork cambium are examples of lateral meristems

(D) Intercalary meristerm is responsible for the formation of leaf primordia

The major parts of the human neural system are depicted below. Fill in the empty boxes with appropriate words.

Names of plants or animals which are made up of more than two epithets are called

Why is it necessary to know the blood groups before giving transfusion?

The antiseptic properties of iodoform is due to which of the following:

Match the classes of lipids listed under column I with the examples mentioned under column II and select the right answer indicating the correct combination of alphabets of the two columns.

$\begin{array}{cccc}& \text{Column I}& & \text{Column I}\\ & \text{Classes of lipids}& & \text{Examples}\\ A& \text{Compound lipids}& e& \text{Waxes}\\ B& \text{Steroids}& f& \text{Phospholipids}\\ C& \text{Simple lipids}& g& \text{Pantothenic acid}\\ & & h& \text{Cholesterol}\end{array}$

Which of the following statement(s) is false, regarding Carbohydrates?

I. A polysaccharide is a branched or unbranched polymer of monosaccharides.

II. Many polysaccharides are sweet and are micromolecules .

III. Polysaccharides are insoluble in water and significant in storage and structural purposes.

IV. Polysaccharides are formed by glycosidic linkages of the monosaccharide units.

What are three major types of cells found in the gastric glands? Name their secretions.

The technical term used to describe the arrangement of stamens in a China rose flower (Hibiscus rosa-sinensis) is

A child has blood group 0. If the father has blood group A and mother has blood group B, work out the genotypes of the parents and the possible genotypes of the other offsprings.