Answer:
one is made of silk and one is made from branches and anything to keep it together and for padding
Explanation:
the spider makes the webs out of silk and it traps anything that goes through it. the birds make the nests from branches and litter.
Answer:
10 % of the energy (i.e., 50 calories) is converted to biomass
. This efficiency of energy transformation is high
There are three types of waste water
sewage: domestic sewage, industrial sewage, and storm sewage
Answer:
Throughout the years, mice' DNA has mutated and adapted to become more likely to survive in the habitat that they are in.
Explanation:
