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Question 24

The blood leaving the tissues becomes richer in



(a) carbon dioxide

(b) water

(c) haemoglobin

(d) oxygen

If $x>3$ is represented on number line as

then $x-4>$ is represented as __

Note: In a number line, a closed circle on the number gets included in the solution, while an open circle on the number will not get included in the solution

Why bats and whales are classified under mammals?

I know this is a weird question but when I learn a a concept for the first time I always have weird questions.

Q- As this is true= Gametes are an organism's reproductive cells. They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each chromosome.So only the haploid cells resulting from meiosis can be called sex cells in this case.

Then what is the name of the cell which is known to be diploid and divides into 4 daughter cells in meiosis? If it is a sex cell itself, then how can it be diploid if all sex cells are haploid.

Draw diagram of (i) nitrogen cycle; (ii) carbon cycle.

Identify the type of epithelium shown in the figure.

Why ridges and grooves are present on our fingers?

Does hair provide us in sensation of touch? How?

Can albinism be cured?

The rough ER contains __ which helps in protein synthesis.

Nucleic acid occurs in

How do poriferan animals differ from coelenterate animals?

The method of growing a plantlet from cells or tissues of a plant in an aseptic condition is called ________.

Which of the following is an example of imbibition

Mention any three differences between a living cell and a brick in a wall.

If two organisms belong to the same order, they would also belong to the same _____ and ______.

Which of the following does NOT belong to the Phylum Annelida?

Manure enhances the _______ of the soil.

The artificial method of treating the blood for removing the nitrogenous waste from it is known as:

Explain ozone layer, its depletion and effects of ozone depletion.

The coleoptile is a cap like covering over

Regarding the assertion and reason; choose the correct option.

Assertion [A]: Mitochondria are also called "the powerhouses of the cell”.

Reason [R]: Significant role of Mitochondria is to produce ATP.

Name two planets other than Earth which also have an atmosphere.

Define pteridophytes. Compare between bryophytes and Pteridophytes.

__ is the energy currency of the cell.

Which of the following alternatives regarding the hypermetropia are correct ?

How are the striated muscles unbranched and cardiac muscles branched ?

Match the following:
$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{1. Seed}& \text{a.From ovary wall}\\ \text{2. Pericarp}& \text{b.From ovary}\\ \text{3. Seed coat}& \text{c.From ovule}\\ \text{4. Fruit}& \text{d.From integuments of ovule}\end{array}$

Name two other sea food items except fish.

Name the first class of terrestrial chordates.

Question 10
One of the following processes is not a step involved in the water-cycle operating in nature
(a) evaporation
(b) transpiration
(c) precipitation
(d) photosynthesis

Observe the figure and label the arrow marked parts:

Bacillus thuringiensis is used as

A
word or a combination of words, whose sounds seems to resemble the
sound it denotes (for example: “hiss”, “buzz”,
etc.) is called onomatopoeia. From the words that you have filled in
the blurbs above, point out these words.