If it has valves then it is a vein.
No all fungi do not have chloropasts..............
An organism's trophic level refers to the food chain position that it occupies. Producers always occupy the Trophy level 1, Primary Consumer occupies the Trophy level 2, Secondary Consumer has the Trophy level 3 and the Tertiary level fills in the Trophy level 4.
Clear cutting means most – or all – of the trees in a given area are cut down. In selective cutting, only selected trees are cut, leaving the rest of the stand ...