Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Question

primary 6 | Science
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Shams
Shams

primary 6 chevron_right Science

Someone please help me with this science questions

Date Posted: 6 years ago
Views: 643
Tay Hui Ling
Tay Hui Ling
6 years ago
hydrilla compete with the floating plants on top for oxygen and sunlight to make food in order to produce glucose to be converted to chemical energy to survive.
fishes consumes hydrilla and when the guerilla cannot make food due to unssufficient external agents,the fish eventually lack their source of food....

See 1 Answer

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Wang Peidong
Wang Peidong's answer
4 answers (Tutor Details)
1st
Picture is just to fulfill the requirements.

The Hyacinth at the water surface blocks sunlight from entering the pond. This results in the Hydrilla at the bottom of the pond being unable to absorb sunlight required for photosynthesis, eventually dying out. Assuming the Hydrilla are a source of food and oxygen for the fishes in the pond, the Hydrillas dying out will eventually result in the fishes being devoid of any source of food or oxygen, eventually dying out as well.