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Identify the following parts labeled 1, 2, 3 and 4.

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A pure tall and a pure dwarf plant were crossed to produce offspring. Offspring were self-crossed. Find out the ratio between true breeding tall to true breeding dwarf.

Which of the following are types of IUDs?

A. Steroid releasing

B. Copper releasing

C. Non – medicated

D. Hormone releasing

In lichens, Algal component is known as ___.

How important is the presence of air bladder in Pisces?

Communication junctions between the cells of cardiac muscle are:

Palm is a monocotyledonous plant, yet it increases in girth. Why and how?

Action potential in a polarised neuron triggers _____.

Glycogen is a homopolymer made of

(a) glucose units (b) galactose units

(c) ribose units (d) amino acids

Grasses belong to monocots and why does they contain fibrous root system instead of adventitious root system..???

Answer the following:

(i) What is the
function of nephridia?

(ii) How many types of nephridia
are found in earthworm based on their location?

Which one of the following is the first gibberellin to be discovered?

Sucrose is a non-reducing sugar because:

In an organism, tall phenotype is dominant over
recessive phenotype, and alleles are designated as T and small t, respectively.
Upon crossingtwo different individuals, total 250 offspring's were obtained,
out of which 124 displayed tall phenotype and rest were dwarf. Thus the
genotype of the parents were

Question 10

Which gas present in air is essential for aerobic respiration? What is the role of oxygen during respiration?

Where are squamous simple epithelial tissues found?

Hypodermis of monocot stem is

Photorespiration lowers the efficiency of photosynthesis by preventing the formation of

In angiosperms, microsporogenesis and megasporogenesis:

What is the importance of pneumatic bones and air sacs in Aves?

Sir/Ma'am,

Can you please suggest me best guide book apart from Navneet digests for Maharashtra State Board "BIOLOGY" for class 12th.

Which of the following organisms have double circulation?

The terminal end of the root is covered by root cap, which is also called __.

Some fishes may act like they are dead by floating upside down to confuse their predators. Explain how they are able to do this?

Which are the $C{O}_2$ fixing enzymes of rice and where are they located?

Menstruation is due to

Match the following columns

$\begin{array}{cc}Column-I& Column-II\\ A.Gobletcells& 1.Antibacterialagent\\ B.Lysozyme& 2.Mucus\\ C.Saliva& 3.HCl\\ D.Oxynticcells& 4.Sublingualgland\end{array}$

Colchicine is a __________