HSC Biology Question Thread

[Daniyahasan]

Hey guys, can somone pls help me with this question

[Mounica]

this question is really confusing me, can someone please explain it to me

[Daniyahasan]

this question is really confusing me, can someone please explain it to me

Im pretty sure the answer is B because the lower the pH the higher the acidity

[Mounica]

Im pretty sure the answer is B because the lower the pH the higher the acidity

makes sense, thank you!

[Mounica]

one more question
I dont remember doing this in class, so im really confused to as what i should be doing for this question

[Daniyahasan]

one more question
I dont remember doing this in class, so im really confused to as what i should be doing for this question

ohh i love these types of questions haha
its really easy so what you basically need to do is follow the boxes, so you look at your code, the first letter is U, so on the 1st base column you find U, then you look at the next letter and find it in the second base column , same goes for the third. By then you've got the name of you first codon
and then you just do the same with the others
The answer to that question is C
hope that helped! ( i probably makes no senses but i tried haha)

[Mathew587]

TBH this looks like a bs questions. Codons are in triplets therefore id guess uua, ccg and acu were the three pairs. so for uua, look at the first base axes, find u and do the same for the other two axes. it's probs c)

[Daniyahasan]

TBH this looks like a bs questions. Codons are in triplets therefore id guess uua, ccg and acu were the three pairs. so for uua, look at the first base axes, find u and do the same for the other two axes. it's probs c)

yeah the answer is C, its a pretty straigh forward question  but the table and all makes it look hard lol

[Natasha.97]

Hey guys, can somone pls help me with this question

Hi!

When a stimulus is introduced, a receptor (A) detects the change, which is then passed along a sensory neuron (X) to the CNS. After the brain receives and interprets the information, it passes down a signal along a motor neuron (B) to the effector muscle/gland, which then carries out the response.

Therefore, the answer would be C: A = receptor, B = motor neuron.

Hope this helps!

[Daniyahasan]

Hi!

When a stimulus is introduced, a receptor (A) detects the change, which is then passed along a sensory neuron (X) to the CNS. After the brain receives and interprets the information, it passes down a signal along a motor neuron (B) to the effector muscle/gland, which then carries out the response.

Therefore, the answer would be C: A = receptor, B = motor neuron.

Hope this helps!

it does! thank youu, i was just really confused

[SwarnikaR]

what are gametes

[Daniyahasan]

what are gametes

theyre sex cells

[gillv2017]

Can someone please explain to me the concept of sex-linkage?? I understand it, but when given a question always mess it up thxxx

[Aaron12038488]

this is a prelim question on 'Life on Earth'. Describe any difficulties you had in your research on this topic, with regard to variations in different resources you consulted. Can you explain why this variation occured?
how would i be going about this question. 

[blasonduo]

Hello, just a short question, when giving your answers, could you explain why the others are incorrect please?

Thanks