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Sexual reproduction is considered beneficial for the protist cell because _______.

Match the following columns.

$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{A.}\text{Meristem}& \text{1}.\text{Photosynthesis, storage}\\ \text{B.}\text{Parenchyma}& \text{2}.\text{Mechanical support}\\ \text{C.}\text{Collenchyma}& \text{3.}\text{Actively dividing cells}\\ \text{D.}\text{Sclerenchyma}& \text{4.}\text{Stomata}\\ \text{E.}\text{Epidermal tissue}& \text{5.}\text{Sclereids}\end{array}$

Codes

A B C D E
(a) 1 3 5 2 4

(b) 3 1 2 5 4

(c) 2 4 5 1 3

(d) 5 4 3 2 1

Question 4

Which of the following stain is not used for staining chromosomes?

(a) Basic fuschsin (b) Safranin

(c) Methylene blue (d) Carmine

Which one is the cofactor of carbonic anhydrase?

(a) Give an example of an endothermic animal.

(b) Give an example of an ectothermic animal.

(c) Give an example for an organism of the benthic zone.

What kind of cells can you find in a fruit with a hard pulp?

Binomial nomenclature consists of:

Physiological effects of gibberellins are _______.

1. Removal of genetic dwarfism

2. Inhibition of seed germination

3. Promoting bolting and flowering

4. Formation of more male flowers in cucurbita

The process of movement of solvent through a semipermeable membrane from the solution to the pure solvent by applying excess pressure on the solution side is called

Match the following columns.



$\begin{array}{cccc}& \text{Column - I}& & \text{Column -vII}\\ \text{A}& \text{Heart failure}& \text{I}& \text{Heart muscle is suddenly damaged}\text{by an inadequate blood supply}\\ \text{B}& \text{Cardiac arrest}& \text{II}& \text{Chest pain due to inadequate}{O}_2\text{reaching the heart muscles}\\ \text{C}& \text{Heart attack}& \text{III}& \text{Atherosclerosis}\\ \text{D}& \text{Coronary Artery Disease (CAD)}& \text{IV}& \text{Heart not pumping blood effectively}\text{enough to meet the needs of the body}\\ \text{E}& \text{Angina pectoris}& \text{V}& \text{Hearts stops beating}\end{array}$

Hibernating animals have tissues containing mitochondira with a membrane protein that accelerates electron transport while blocking the synthesis of ATP. What is the consequence of this?

Which among the following is a true fish?

Phenotype is influenced by:

Select the correct statements among the four (i - iv) given below:

(i) The flower with inferior ovary is said to be hypogyous

(ii) The corolla in pea flower shows vexillary aestivation

(iii) The stamens in citrus are in polyadelphous condition

(iv) In mustard, the type of placentation is axile

In the given figure, certain parts are indicated by letters. Select the answer which contains the correct matching of these letters with the correct parts.

Vitamin B₂ is component of coenzyme

What is the location of DNA in the cell before the formation of chromosomes or chromatin fibres?

Mature ovum in human being is surrounded by

The case of Amazonian Water Hyacinth destroying the aquatic ecosystem in Indian freshwaters can be classified as ________.

Which of the following helps in the movement of the ovum in the fallopian tube ?

What are bursa lymphocytes?

Depending upon the chemical nature of the template (DNA or RNA) and the nature of nucleic acids synthesised from it (DNA or RNA), list the types of nucleic acid polymerases.

What is chlorination?

What is the ideal pH for the function of lysosomes?

How many DNA in one chromosome?

What physiological circumstances lead to erythroblastosis foetalis ?

Of the total amount of energy that passes from one trophic level to another in a food chain, about $10\%$ is