-
We need your support!
We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
Click here to Donate Now (View Announcement)
Large amount of BIOLOGY help paper 1 needed!
- Thread starter Adahshan
- Start date
- Messages
- 100
- Reaction score
- 1
- Points
- 28
Nov 2010
19 , D , smoke particles affect goblet cells and cillia , goblet then to release excess mucus , cilla cannot move the mucus as it gets perilized .mucus accumulate in lung and provide a good medium for bacteria growth , bacteria will cause infection to lung .
23 , A , because X will constrict so this will reduce the blood flowing in Y and Z ( because arterioles control the blood flow , so if it constrict blood flow will decrease in both )
27 , I know u might think it C , but correct answer is B because they are talking about 8th not after ovulation . sperms cannot suvive for more than 3-4 days ..
36 , D , because a food web always has a produces (plants) and consumer ( animal) and decomposers ... food chain show enery flow .. plant or fossil fuels cannot give plants any energy to atmosphere
June 2010
24 , B , because electrical signal travel from receptor to sensory nueorne to relay nuerone to motor to effector . relay is in the CNS which is brian and spinal cord but in this case we are talking about spinal cord . so it travel away from spinal (where relay nuerons are ) to the effector ....
32 , srry i cant explain by writing on fourms .....
good luck
19 , D , smoke particles affect goblet cells and cillia , goblet then to release excess mucus , cilla cannot move the mucus as it gets perilized .mucus accumulate in lung and provide a good medium for bacteria growth , bacteria will cause infection to lung .
23 , A , because X will constrict so this will reduce the blood flowing in Y and Z ( because arterioles control the blood flow , so if it constrict blood flow will decrease in both )
27 , I know u might think it C , but correct answer is B because they are talking about 8th not after ovulation . sperms cannot suvive for more than 3-4 days ..
36 , D , because a food web always has a produces (plants) and consumer ( animal) and decomposers ... food chain show enery flow .. plant or fossil fuels cannot give plants any energy to atmosphere
June 2010
24 , B , because electrical signal travel from receptor to sensory nueorne to relay nuerone to motor to effector . relay is in the CNS which is brian and spinal cord but in this case we are talking about spinal cord . so it travel away from spinal (where relay nuerons are ) to the effector ....
32 , srry i cant explain by writing on fourms .....
good luck