Its .. Nervous tissues i think i still remember cause i had this question on an exam and i got it right lol ..
- But hoped i helped you out any .. if anymore help is need just ask me then .
Answer:
MARK THE IMPORTANT THINGS.
FOCUS ON IT.
TAKE VERY SMALL BREAKS
UNDERSTAND IT.
REWARD YOUR SELF
The number of producers is more than consumers and top carnivores in ecosystem. for example:- in the food chain of grass--goat--man,atleast 90% of energy is pasted to other level and 10% will be stored at that level it self.
grass goat man
50/100 40/80 30/60.
as we human beings depend on plants and animals for our food for our whole life we need atleast 100 numbers of small plants for one week.
Answer:
react with antigens and destroy them
The beginning of the Cambrian Period is marked by the evolution of hard body parts such as calcium carbonate shells. ... These body parts fossilize more easily than soft tissues, and thus the fossil record becomes much more complete after their appearance.
