15 Most Important Biology Questions for Term 2 | CBSE Class 10 Science Boards

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In today's session, we will be studying 15 most important questions for Biology for Term 2 Boards, Class 10 Board Exams Preparations.

If you want to ace the exam with a perfect strategy and complete your syllabus comprehensively then this is the only educational channel you need. We advise you to watch the whole session to be able to study and boost your score for CBSE Class 10

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00:00 Introduction
0:58 Important Questions - 1st Question
2:24 2nd Question
3:56 3rd Question
6:15 4th Question
9:29 5th Question
11:07 6th Question
12:05 7th Question
14:26 8th Question
16:12 9th Question
17:27 10th Question
19:08 11th Question
21:58 12th Question
22:32 Dihybrid Cross
26:03 13th Question
29:34 14th Questio
31:30 15th Question
33:21 About Telegram

#BYJUS #BYJUSClass10 #BYJUSClass10Science #Class10Science #Class10Biology #CbseClass10 #CBSETerm2 #Term2Preparations #Term2Science #Term2Biology #Class10Term2

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Hey Students, Many of you had doubt on question number 14, So here is the Explanation for that!
When an animal consumes food having DDT residue, the DDT accumulates in the tissue of the animal by a process called bioaccumulation. The higher an animal is on the food chain (e.g. tertiary consumer such as seals), the greater the concentration of DDT in their body as a result of a process called biomagnification.

According to the data from various research papers, the concentration of DDT will increase in organisms in the following way..
Vegetarian food chain:
Plants (5ppm of DDT)→ Humans (240ppm of DDT)
Non-vegetarian food chain:
Plants (5ppm of DDT) → Goat (240 ppm of DDT) → Man (1600 ppm of DDT)

Hence in the question the food chain we have is
Water (0.2ppm.)→ Plankton (5.0ppm) → Fish (240ppm)​→ Fish eating bird ​(1600 ppm of DDT)
All these concentrations vary depending on the mass of the organism and amount of food taken by them.

[ManojKumar-homf]

After watching byjus videos I realize that I have done everything for exam

[sridevijoshi]

Mam are this previous years board qustions

[himanshurajput]

Hlw...mam where is pdf link plzz give 😅

[thamizhavannarayanan]

i have a doubt how to calculate biological magnification of next trophic level

[sukhjot]

Thank You Ma'am, It Helps Us for Last-Minute Revision 🥰

[prabhayadav]

The overall session is very important for us but 14 question not understand????

[charviparkar]

Ma'am how is it 240 ppm in question number 14. Pls clarify. The overall session was great. Thanks❤

[srinithya]

Mam, How is it 240 ppm in que 14? Did we use any formula?

[harshusingh]

2:16 Mam, Hydra reproduces by budding and by REGENERATION too. So, can we write REGENERATION instead of BUDDING ?

[butcherofficial]

U r awesome keep it up byjus really helpful session before my science exam 🌚☠️❤️❤️❤️

[venkatesuappusy]

Useful video mam ❄❄❄
Can we simply take a higher value than 0.2ppm and write for the successive trophic levels!!!

[zahidansari]

Mam, please take a easy session for helping answers easily

[Highschoolteacher]

We love this premiere sessions pls make these for social as well..

[stellaxylz]

The way you talk and also your english is so damn good... thankyou so much for the video.

[sarojdevi-wn]

HAPPY MOTHER'S DAY ALL MAM'S BECAUSE YOU ALSO HARDWORKING FOR ALL #ANKITA #AISHWARYA #KRITI #KHUSBHU #TARANA #ASHMITA MAM 🌹🌹🥰🥰💜💜

[priyasinha]

This was amazing session and thanks u ma'am 🥰

[srinishithdommeti]

mam canu please make a video to make learning diagrams easy 🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺🥺

[maitreyivelmuruhan]

That was really an amazing session mam, Thanks for making it short and informative . No matter how many education channels are there byjus is always the best...✌️