CSEC Biology June 2020 Paper 1

June 2020 Paper 1 is the focus in this Biology CSEC exam.
Note: Questions 24-29 are fuzzy and not answered.
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00:00 Intro
00:30 Section A Living Organisms in the Environment
07:30 Section B Life Processes and Diseases
27.25 Section C Continuity and Variation
33:00 Outro
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[@billiesbeloved8595]

WOOIIIII MERDDDAAAA

[@shuniajames4395]

helpppp😭😭i thought was me alone here watching b4 d exam😭

[@shemiahprescott8619]

​@@shuniajames4395sameee

[@Sheslayy]

LOLL

[@Sheslayy]

@@shuniajames4395SAME SAME

[@laurre9722]

Sir for 37, why wouldn't it be C, seeing as the motor neurone is the one that actually delivers the impulse to the effector?

[@earlytocxc]

The wording of the question makes 37 a poorly designed question. B is literally the relay neuron, or they acting as motor neuron is separate from the muscle. So it can be C depends on how you interpret the question. Great catch.

[@TwixMix]

Tyy!!

[@Sheslayy]

THANKS SIR OMG

[@fingertoe-xq6ru]

hello mr. sir

[@tonianwhite2514]

sir for number 4, it's not supposed to be B?

[@earlytocxc]

You are correct B is NOT the answer, the correct answer is D (as shown in the video)

[@unwillinglywilling9555]

Sir for 51, if the 3rd diagram was the first, wouldnt it show 4 chromatids and 2 chromosomes, instead of just 2 chromatids, and since it does show just 2 could it then be referring to after cytokinesis looking at one of the produced daughter cells

[@mika.shatani]

if it was after cytokinesis there would be two daughter cells but there is only one. yes normally there would be 4 chromatids instead of just two but based on this question the third diagram would be prophase because of the splinder fibers beginning to form.

[@saiana24]

sir isn’t number 4 supposed to be B) ?

[@earlytocxc]

All the answers are true, hence D