Jawapan biology

for 4E student 2009

http://www.4shared.com/file/162400581/b0ea969e/Microsoft_Word_-_answer_biof4_.html
http://www.4shared.com/file/162405338/19917b71/Microsoft_Word_-_answer_biof4_.html
http://www.4shared.com/file/162406225/6d4cf354/Microsoft_Word_-_answer_bio_f4.html
http://www.4shared.com/file/162431567/38160390/Microsoft_Word_-_answer_for_in.html
http://www.4shared.com/file/162431582/d6ffda91/Microsoft_Word_-_answer_for_in.html

science concept

Incorrect concept:-

1. Animal cells do not have vacoule - actually animal cell like amoeba/ paramecium have small vacoule
2. A log, being very heavy and sinks in water - log heavy but the volume is big too. so log not sink in water... consider the formula of density -------> when mass divide the volume we get the density. density of log is low.....below the density of water. log can float in water.
3. A population is a group of all the organism present in a habitat - wrong. population is a group of same species in a habitat
4. parasites usually kill their hosts - parasite not kill their hosts....parasites continue to live on/in the host to get benefits from the living host. predator kill for food

Betulkan konsep anda