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Published on: 29/05/2021
QB365 Provides the HOT Question Papers for Class 11 Biology, and also provide the detail solution for each and every HOT Questions. HOT Questions will help to get more idea about question pattern in every exams and also will help to get more marks in Exams
Download CBSE Class 11th Standard CBSE Biology question papers, sample papers, important questions, and previous year solved papers in PDF format. Get free study materials, NCERT solutions, and exam preparation resources for Class 11th Standard CBSE Biology
Questions + Answers key
Take MCQ Biology Test1.
Why are urochordates called tunicates?
2.
Why pneumatic bones are present in birds?
3.
Birds have no teeth, then how do they grind the grains they eat as food?
4.
Why the caudal fin in bony fishes is called as homocercal type?
5.
Why the heart of fishes is commonly called 'the venous heart'?
6.
Why is lateral line sensory system present in Pisces?
7.
What is the difference in blood of annelids and of vertebrates?
8.
What is pseudo segmentation?
9.
Give example of two unisexual animals
10.
Why digestive tract of flatworms and coelenterates is called incomplete?
1.
This is because the soft body of urochordates is surrounded by a thick test or tunic, often transparent or translucent
2.
The empty space in pneumatic bones helps in weight reduction of skeleton in birds.It is a kind of flight adaptation in birds
3.
Birds have food storing crop and food masticaticating gizzard, which helps them to grind the food
4.
This is because caudal fin has equal lobes
5.
This is because it supplies deoxygenated blood to gills for oxygenation
6.
It is used by fishes to note the changes in surrounding water
7.
In annelids, haemoglobin is present in plasma, while in vertebrates it is present in RBCs.
8.
In tapeworms, body is divided into number of segments called proglottids that are budded off from the neck Each segment is able to perform all the vital function of body. This type of segmentation is called pseudo metamerism or pseudo segmentation.
9.
Frog and birds.
10.
Because they have single opening both for ingestion and egestion.
11th Standard CBSE Syllabus & Materials
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