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How does an Amoeba engulf the food particle ?

By identifying hierarchies of characteristics between species, we are able to trace:

Why the blood does not dry in our body, while it dries outside our body?

In California, citrus orchards were badly damaged by scale insects. To control these scale insects, ladybird beetles were released into these orchards. This type of pest control is known as

To remove chlorophyll, the leaf is boiled into:

Which of the following gas was not present in the early earth atmosphere?
(a) Ammonia
(b) Oxygen
(c) Hydrogen sulphide
(d) Methane

(a)What is chlorophyll ? What part does chlorophyll play in photosynthesis ?
(b)(i) Which simple food is prepared first in the process of photosynthesis ?
(ii) Name the food which gets stored in plant leaves.

Artery gets divided into smaller vessels and the smallest vessels have walls which are one-cell thick. These smallest vessels are called __.

___ are chemical substances that facilitate communication among organisms.

In the operon model, RNA polymerase binds to___ .

Name the stage when sister chromosomes separate from their paired conditions.

The polarisation of outer side of the nerve fibre is due to the presence of ___

Excretory products are byproducts of digestion of

What were the after effects of population explosion caused due to scientific and industrial revolution?

At puberty, growth of female and male secondary sex organs is stimulated by ................, and .......................... respectively.

The tiny branching capillaries unite into a common branch called the ___.

The spermatozoan has

Malaria is caused by__________.

What is meant by berthing to. What happens to the rate of breathing when we do vigorous exercise and why.

B} define translocation with respect to translocation on plants. Why is it essential for plants.

Who demonstrated the importance of sunlight for the process of photosynthesis?

Protein diet makes the urine

List the advantages of having small families.

Opening your mind to new ways of doing things can improve

Explain sexual reproduction in plants? [5 MARKS]

What is the relation between climate, adaptation, and evolution? [3 MARKS]

Stem cells or totipotent cells are formed during embryonic development ………………………..

___ has the power of changing mindset

Which theory explains the origin of the universe?

What exactly is the white matter of spinal cord made up of ?

With reference to a normal human being, which one of the following statements is not correct?

Which of the following statement(s) is/are correct ?

Regarding the assertion and reason; choose the correct option.

Assertion [A]: Salivary glands and intestinal glands are intrinsic glands.

Reason [R]: They aid in intracellular digestion.

Write a short note on rainwater harvesting. [2 MARKS]

4.(a)How do organisms reproducby fission?Write the names of any 2 organisms which reproduce by this method .

(b)Differentiate between the fission if Leishmania and Plasmodium .

5.(a)Name the end products formed due to the digestion of :
--- Proteins ----Carbohydrates ---- Fats

HEALTH HAZARDS OF MODERNIZATION

Name two elements of xylem through which water and dissolved materials reach the leaves

How is food pushed through the gut for 1,3&5marks

Is female gamates known as ova or ovum?

Action potential in a polarised neuron triggers _____.

Select the odd one among the following.

Sclera, Retina, Rhodopsin, Choroid

Follicular phase of menstrual cycle is the other name of

Which of the following is a characteristic of the fovea in the eye?

During oogenesis, the ova produced are ___ in nature.