Plant cells have a cell wall while an animal cell doesn't. Also plant cells have a much larger vacuole than animal cells. There are other differences too but these are the one I could think up on short notice. Hope this helps!
C (thermal energy to mechanical energy)
Various forms of the same gene are called
Answer: alleles
Yes all matter does contain heat, the heat is caused by the movements of atoms - so it creates heat as energy :D
Answer:
d.They are still very common ,but threatened with increasing harvesting for timber.
Explanation:
Brazil's Araucaria trees:
These trees are very soft and can be cut so easily.Brazilian pines is also know as Araucaria tree.
Before 1950's or 60's the number of trees were more but now due to harvesting the number of trees become less.The these trees are used for timber and for glue also.
In the present time the availability of these trees threatened with increasing harvesting for timber.
So the our option d is correct.